oxy

Mixture of an amine alkoxylate ester and a quaternary ammonium compound as a collector for minerals containing silicate

The invention relates to the use of a composition of A) at least one quaternary ammonia compound comprising at least one organic radical bonded to the ammonia nitrogen atom and optionally comprising heteroatoms and having 1 to 36 carbon atoms, and B) at least one amine alkoxylate ester of formula (1) or a salt thereof, where A, B are, independently of each other, a C2- through C5-alkylene radical R1, a C8- through C24-alkyl radical or alkenyl radical R2, R3, R4 independent of each other, H, or a C8- through C24-acyl radical, with the stipulation that at least one of the radicals R2, R3 or R4 stands for a C8- through C24-acyl radical, and x, y, z, independently of each other, stand for a whole number from 0 through 50, with the stipulation that x+y+z is a whole number from 1 through 100, in quantities of 10 through 5000 g/tonne of ore as a collector in silicate floation.




oxy

6-(5-hydroxy-1H-pyrazol-1-yl)nicotinamide inhibitors of PHD

The present invention provides compounds of the formula: which are useful as inhibitors of PHD and pharmaceutical compositions thereof.




oxy

Solid forms of gyrase inhibitor (R)-1-ethyl-3-[6-fluoro-5-[2-(1-hydroxy-1-methyl-ethyl)pryimidin-5-yl]-7-(tetrahydrofuran-2-yl)-1H-benzimidazol-2-yl]urea

The present application is directed to solid forms of compounds of formula I: and pharmaceutically acceptable salts thereof, that inhibit bacterial gyrase and/or Topo IV and pharmaceutical compositions comprising said compounds and salts. These compounds and salts are useful in treating bacterial infections.




oxy

Hydroxymethylaryl-substituted pyrrolotriazines as ALK1 inhibitors

This invention relates to novel 5-[(hydroxymethyl)aryl]-substituted pyrrolo[2,1-f][1,2,4]triazin-4-amines of formula (I), to processes for the preparation of such compounds, to pharmaceutical compositions containing such compounds, and to the use of such compounds or compositions for treating angiogenesis-related disorders, in particular angiogenesis-related ocular disorders.




oxy

6-(substituted)methylenepenicillanic and 6-(substituted)hydroxymethylpenicillanic acids and derivatives thereof

Beta-lactamase inhibiting compounds of the formula ##STR1## or a pharmaceutically acceptable acid addition or carboxylate salt thereof; where n is zero, 1 or 2; X3 is H or Br, R1 is H, the residue of certain carboxy-protecting groups or the residue of an ester group readily hydrolyzable in vivo; one of R12 and R13 is H and the other is vinyl, certain aryl, alkylthio, alkylsulfonyl or certain heterocyclyl, aminomethyl, thiocarboxyamido or amidino groups; one of R2 and R3 is H and the other is as disclosed for the other of R12 and R13, or is Cl or CH2 OH, and R18 is H or certain acyl groups; intermediates useful in their production, methods for their preparation and use, and pharmaceutical compositions containing them.




oxy

1,4-Dihydropyridine-3-carboxylate derivatives

1,4-Dihydropyridine-3-carboxylate derivatives are produced having vasodilating and hypotensive action.




oxy

Method of producing a bis(2-carboxyethyl)alkyl phosphine oxide and a derivative thereof

A method of producing a bis(2-carboxyethyl)-alkyl phosphine oxide represented by the following general formula (1) is disclosed. ##STR1## The method comprises the following Steps 1-4: step 1 wherein phosphine is reacted with acrylonitrile to produce bis(2-cyanoethyl)phosphine and then, in step 2, reacted with an alkene to produce a bis(2-cyanoethyl)alkyl phosphine, and in step 3, reacted with an oxidizing agent to produce a bis(2-cyanoethyl)alkyl phosphine oxide, and in step 4, said bis(2-cyanoethyl)alkyl phosphine oxide is reacted with water or a lower alcohol to give a bis(2-carboxyethyl)alkyl phosphine oxide or a derivative thereof.




oxy

Process of preparing a fluid rare earth alkoxylation catalyst

A process to prepare an improved fluid rare earth phosphate catalyst composition useful in preparing alkylene oxide adducts of organic compounds having active hydrogen atoms is provided. The catalyst is prepared by dissolving a rare earth salt in a C9-C30 active hydrogen containing organic compound and then adding phosphoric acid to the organic compound rare earth mixture.




oxy

Process for removing oxygenate from an olefin stream

The present invention provides a process for removing oxygenate from an olefin stream comprising oxygenate, comprising providing to an oxygenate recovery zone the olefin stream comprising oxygenate and a solvent comprising ethanol, treating the olefin stream comprising oxygenate with the solvent, and retrieving from the oxygenate recovery zone at least one oxygenate-depleted olefinic product stream comprising olefin and a spent solvent comprising at least part of the oxygenate.




oxy

Water-borne paints based on epoxy resins

An aqueous epoxy resin system AB is described comprising an aqueously dispersed epoxy resin A having, on the average, at least one epoxy group per molecule, and a water-soluble or water-dispersible curing agent B which comprises the reaction product of an amine B1 having at least one primary and/or at least one secondary amino group, an adduct B2 of a polyalkylene ether polyol B21 and an epoxide component B22, and an aromatic compound B3 having at least one acidic group selected from the group consisting of hydroxyl and carboxyl groups, which system can be applied by rolling, spraying or brushing to provide corrosion protection on base metals.




oxy

Epoxy group-terminated polymers, the compositions thereof and the use thereof as impact resistance modifiers

The present invention relates to epoxy group-terminated polymers of the formula (I). Said epoxy group-terminated polymers are suited extremely well as impact resistance modifiers, particularly in epoxy resin compositions. They are particularly suited for use in heat-curing epoxy resin adhesives. It has been found that such epoxy resin compositions not only have excellent mechanical properties and high glass transition temperatures, but also above all improved impact resistance properties, both at room temperature and at low temperatures.




oxy

Homogenous dispensing process for an epoxy-composition with high filler content

The present invention relates to a process for the production of a ready-to-use epoxy composition having a filler content of at least 55 vol.-%, relative to the complete ready-to-use epoxy composition, which comprises: providing a liquid A, which comprises at least one epoxy resin,providing a liquid B, which comprises at least one curing agent,providing a solid component C, which comprises at least one filler,wherein in a first step one of the liquids A or B is filled in a mixing container,in a second step the solid component C is deposited on top of the liquid in the mixing container,in a third step the remaining liquid A or B is deposited on top of the solid component C, andin a fourth step the components are mixed to obtain the ready-to-use epoxy composition.




oxy

Epoxy resin composition and light emitting apparatus

Disclosed are an epoxy resin composition and a light emitting apparatus. The epoxy resin composition includes a triazine derivative epoxy resin and an alicyclic epoxy resin.




oxy

Epoxy resin composition for encapsulating semiconductor, semiconductor device, and mold releasing agent

Disclosed is an epoxy resin composition used for encapsulation of a semiconductor containing an epoxy resin (A), a curing agent (B), an inorganic filler (C) and a mold releasing agent, in which the mold releasing agent contains a compound (D) having a copolymer of an α-olefin having 28 to 60 carbon atoms and a maleic anhydride esterified with a long chain aliphatic alcohol having 10 to 25 carbon atoms.




oxy

Proxy calculation system, proxy calculation method, proxy calculation requesting apparatus, and proxy calculation program and recording medium therefor

A function f(x) is calculated with a calculating apparatus that makes a correct calculation with a low probability. Provided that G and H are cyclic groups, f is a function that maps an element x of the group H into the group G, X1 and X2 are random variables whose values are elements of the group G, x1 is a realized value of the random variable X1, and x2 is a realized value of the random variable X2, an integer calculation part calculates integers a' and b' that satisfy a relation a'a+b'b=1 using two natural numbers a and b that are relatively prime. A first randomizable sampler is capable of calculating f(x)bx1 and designates the calculation result as u. A first exponentiation part calculates u'=ua. A second randomizable sampler is capable of calculating f(x)ax2 and designates the calculation result as v. A second exponentiation part calculates v'=vb. A determining part determines whether u'=v' or not. A final calculation part calculates ub'va' in a case where it is determined that u'=v'.




oxy

Aqueous epoxy and organo-substituted branched organopolysiloxane emulsions

Aqueous emulsions of epoxy- and organo-substituted, branched organopolysiloxanes are prepared by emulsifying the latter in water with the aid of a dispersing agent. The emulsions are storage stable and are useful in multi-component coating, adhesive, and binder systems.




oxy

2-hydroxy-6-methyl-heptane derivatives as perfuming ingredients

The invention relates to a method of use of certain derivatives of formula (I) in the form of any one of its stereoisomers or a mixture thereof, and wherein R1 represents a hydrogen atom, a C1-4 alkyl or alkenyl group, or a (CHR)2OH group, each R being a hydrogen atom or a methyl group; R2 represents a hydrogen atom or a methyl, ethyl or n-propyl group; and R3 represents a hydrogen atom or a methyl group, as perfuming ingredients. The present invention concerns also certain compounds and compositions or articles containing such compounds.




oxy

1-hydroxy-octahydroazulenes as fragrances

(3S,5R)-3,8-dimethyl-5-(prop-1-en-2-yl)-octahydroazulen-1-ols, their use as flavor or fragrance ingredient, and a process of their production by oxidation in the presence of laccase.




oxy

4(3)-(4-hydroxy-4-methylpentyl)-3-cyclohexene-1-carbonitrile

A compound and a fragrance composition containing the same are provided, wherein the compound has a citrus odor in addition to a muguet odor, which is useful as a fragrance, is stable in an aqueous vehicle, and can provide a bright muguet odor with good fragrance retention by being blended with another fragrance. Particularly, they are 4(3)-(4-hydroxy-4-methylpentyl)-3-cyclohexene-1-carbonitrile and a fragrance composition containing 4(3)-(4-hydroxy-4-methylpentyl)-3-cyclohexene-1-carbonitrile.




oxy

Method for the hydroxylation of phenols and phenol ethers

The present invention relates to a method for the hydroxylation of phenols and phenol ethers by means of hydrogen peroxide. The invention specifically relates to a method for the hydroxylation of phenol by means of the hydrogen peroxide. The method of the invention for the hydroxylation of a phenol or phenol ether by means of reacting said phenol or phenol ether with the hydrogen peroxide in the presence of an acid catalyst is characterized in that it includes mixing a phenol or phenol ether with a hydrogen peroxide solution in a mixing device under conditions enabling the conversion rate of the hydrogen peroxide to be minimized, and in that said reaction mixture is then placed in a piston flow reactor where the reaction leading to the production of the hydroxylated material takes place, the acid catalyst being fed into the mixing device and/or into the piston flow reactor.




oxy

Branched alkoxylate surfactant composition

A composition is described containing a branched nonionic surfactant of Formula (I): (I) wherein x is a real number from 1 to 11, y is a real number from 1 to 20, R 1 is an alkyl group having 1 to 3 carbon atoms, R 2 is an alkyl group having 4 to 6 carbon atoms, and a primary 5 alcohol ethoxylate.




oxy

Ferric hydroxycarboxylate as a builder

The use of ferric hydroxycarboxylate as a chelator and builder for cleaning compositions is disclosed. The cleaning composition may be formulated for warewashing, laundering, and for other means of removing soils and includes a ferric hydroxycarboxylate, an alkalinity source and a surfactant system. The cleaning composition has a pH of between about 9 and about 12.




oxy

Methods of splicing 2G rebco high temperature superconductors using partial micro-melting diffusion pressurized splicing by direct face-to-face contact of high temperature superconducting layers and recovering superconductivity by oxygenation annealing

Disclosed is a splicing method of two second-generation ReBCO high temperature superconductor coated conductors (2G ReBCO HTS CCs), in which, with stabilizing layers removed from the two strands of 2G ReBCO HTS CCs through chemical wet etching or plasma dry etching, surfaces of the two high temperature superconducting layers are brought into direct contact with each other and heated in a splicing furnace in a vacuum for micro-melting portions of the surfaces of the high temperature superconducting layers to permit inter-diffusion of ReBCO atoms such that the surfaces of the two superconducting layers can be spliced to each other and oxygenation annealing for recovery of superconductivity which was lost during splicing.




oxy

Aminohydroxylation of alkenes

The invention relates to a process for the aminohydroxylation of alkenes using N-oxycarbamate reagents, e.g. N-acyloxycarbamate, N-alkyloxycarbonyloxycarbamate and N-aralkoxycarbonyloxycarbamate reagents. The invention particularly relates to an intermolecular aminohydroxylation reaction that can be carried out in the absence of added base. The invention also relates to novel N-oxycarbamate reagents that are stable crystalline materials. The process of the invention is useful in the synthesis of compounds having a vicinal amino alcohol moiety, such as biologically active compounds.




oxy

Method for producing silica-supported catalyst, and method for producing unsaturated carboxylic acid or unsaturated nitrile

A method for producing a silica-supported catalyst comprising Mo, V. Nb, and a component X (Sb and/or Te) to be used in a vapor phase catalytic oxidation or ammoxidation of proprane, comprising the steps of: (I) preparing a raw material mixture solution by mixing Mo, V, Nb, component X, a silica sol, and water;(II) obtaining a dry powder by drying the raw material mixture solution; and(III) obtaining a silica-supported catalyst by calcining the dry powder, wherein the silica sol contains 10 to 270 wt ppm of nitrate ions based on SiO2.




oxy

Substituted 1-benzylcycloalkylcarboxylic acids and the use thereof

The present application relates to novel substituted 1-benzylcycloalkylcarboxylic acid derivatives, to processes for their preparation, to their use for the treatment and/or prevention of diseases, and to their use for producing medicaments for the treatment and/or prevention of diseases, especially for the treatment and/or prevention of cardiovascular disorders.




oxy

Process and system for the separation and drying of carboxylic acid crystals

In a process for the separation and drying of crude carboxylic acid crystals from a slurry in a solvent, the slurry is supplied to a filter operating at pressure and at a temperature above the atmospheric boiling point of the solvent. A cake of separated crystals is removed from the filter and passed to a thermal dryer. In a system for the separation and drying of crude carboxylic acid from a slurry in a solvent, a pressure filter device has a slurry inlet and an outlet for a cake of carboxylic acid crystals. The system also has a thermal dryer and means for transporting the cake of carboxylic acid crystals from the pressure filter device to the dryer. The pressure filter device is configured to operate at a pressure and temperature above the atmospheric boiling point of the solvent.




oxy

Process for recovering aliphatic monocarboxylic acids from distillation

A process is provided for recovering aliphatic monocarboxylic acids having from 4 to 11 carbon atoms from the distillation residue obtained in the oxidation of the corresponding aldehyde by means of oxygen or oxygen-containing gas mixtures in the presence of alkali metal carboxylates or alkaline earth metal carboxylates to form the corresponding monocarboxylic acid and subsequent distillation, characterized in that the distillation residue is reacted with an aqueous acid in a tube reactor and the two-phase mixture flowing out from the tube reactor is introduced into a settling vessel in which the organic phase which separates out has a pH of 4.5 or less.




oxy

Process and apparatus for slurry separation of aromatic carboxylic acid

In a process for removing aromatic carboxylic acid from a slurry thereof in solvent, the slurry is split into sub streams and each of said sub streams is supplied to a respective rotary pressure filter such that the sub stream pass through the filters in parallel. Gas is passed through the rotary pressure filters in series in an open-loop arrangement.




oxy

Hydrocarboxylation of aqueous formaldehyde using a dehydrating recycle stream to decrease water concentration

Disclosed is a process for the production and purification of glycolic acid or glycolic acid derivatives by the carbonylation of aqueous formaldehyde. The water in the hydrocarboxylation zone is reduced via reaction with the ester bonds in a recycle stream comprising glycolic acid oligomers and/or methyl glycolate oligomers.




oxy

L-proline and citric acid co-crystals of (2S, 3R, 4R, 5S,6R)-2-(3-((5-(4-fluorophenyl)thiopen-2-yl)methyl)4-methylphenyl)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol

The present invention is directed to L-proline and citric acid co-crystals of (2S,3R,4R,5S,6R)-2-(3-((5-(4-fluorophenyl)thiophen-2-yl)methyl)-4-methylphenyl)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol, pharmaceutical compositions containing said co-crystals and their use in the treatment glucose-related disorders such as Type 2 diabetes mellitus and Syndrome X.




oxy

Method for producing cationized cellulose and method for producing cationized hydroxyalkyl cellulose

A production method of a cationized cellulose or a cationized hydroxyalkylcellulose, including step 1 for adding a cationizing agent to cellulose and mechanically decrystallizing the cellulose and step 2 for adding a basic compound to the mixture obtained in step 1 and mechanically decrystallizing the cellulose, or a production method of a cationized cellulose or a cationized hydroxyalkylcellulose, including a step 3 for adding a basic compound to cellulose and mechanically decrystallizing the cellulose and step 4 for adding a cationizing agent to the mixture obtained in step 3 and mechanically decrystallizing the cellulose. The cellulose and the cationizing agent are allowed to react with each other in step 2 or step 4.




oxy

Coating agent comprising hydroxyalkyl cellulose

A coating agent containing a hydroxyalkyl cellulose in which a content of hydroxyalkoxy groups within the hydroxyalkyl cellulose is within a range of 40 to 50% by mass, preferably a coating agent containing a hydroxyalkyl cellulose in which the content of hydroxyalkoxy groups is within a range of 40 to 50% by mass and also a viscosity of 2% aqueous solution at 20° C. is within a range of 3.0 to 5.9 mPa·s; and a solid preparation coated with the coating agent.




oxy

Method for continuously preparing carboxylic acid ester

A method for continuously preparing a carboxylic acid ester is disclosed. In the method of the present invention, a vertical reactor is filled with a solid catalyst, a carboxylic acid and an alcohol are introduced into a lower part of the vertical reactor, esterification is performed to form an esterized mixture, the esterized mixture is output from an upper part of the vertical reactor, and distillation is performed to isolate the carboxylic acid ester. The method of the present invention is simple, easily controlled and environmental friendly, and has significantly high conversion rate and selectivity.




oxy

Esters of (acyloxymethyl)acrylamide, a pharmaceutical composition containing them, and their use as inhibitors of the thioredoxin—thioredoxin reductase system

The subject of the present invention are novel esters of (acyloxymethyl)acrylamide, a pharmaceutical composition containing them and their use in the production of drugs for the prophylaxis or treatment of oncogenic diseases and diseases connected with increased cell proliferation.




oxy

Bis-acylated hydroxylamine derivatives

The invention provides certain bis-acylated hydroxylamine derivative compounds, pharmaceutical compositions and kits comprising such compounds, and methods of using such compounds or pharmaceutical compositions. In particular, the invention provides methods of using such compounds or pharmaceutical compositions for treating, preventing, or delaying the onset and/or develop of a disease or condition. In some embodiments, the disease or condition is selected from cardiovascular diseases, ischemia, reperfusion injury, cancerous disease, pulmonary hypertension and conditions responsive to nitroxyl therapy.




oxy

Ester group-containing tetracarboxylic acid dianhydride, novel polyesterimide precursor derived therefrom, and polyesterimide

A polyimide demonstrates low coefficient of hygroscopic expansion and low water absorption coefficient when used as an insulation film. The polyimide is derived from a tetracarboxylic acid dianhydride containing ester group expressed by the general formula below, and a polyester imide precursor: wherein R is independent and represents a straight or branched-chain alkyl group with 1 to 6 carbon atoms or straight or branched-chain alkoxyl group with 1 to 6 carbon atoms, n is an integer of 0 to 4, and m is an integer of 2 to 4, but wherein, if m =2, n is an integer of 1 to 4.




oxy

Dihydroxypropylamide-modified polysiloxane compound

A modified polysiloxane compound is represented by following Formula (1), in which R1 to R9 represent hydrocarbon groups selected from linear alkyl groups having 1 to 20 carbon atoms, branched chain alkyl groups having 3 to 6 carbon atoms, and cyclic alkyl groups having 3 to 6 carbon atoms; p and q represent average numbers of siloxane units indicated in parentheses, where p is a number of 1 or more and q is a number of 2 or more; and “A” represents a group selected from a group represented by following Formula (2), a group represented by following Formula (3), and hydrogen atom. The modified polysiloxane compound has at least a siloxane unit wherein “A” is the group represented by following Formula (2), and a siloxane unit wherein “A” is the group represented by following Formula (3).




oxy

Organoxysilane compounds having silyl-protected secondary amino group and making method

A silane compound having a secondary amino group protected with a specific silyl group is useful as silane coupling agent, resin additive, textile treating agent, surface treating agent, paint additive, and adhesive.




oxy

Method for preparing diamino-dianhydro-dideoxyhexitols, particularly preferably 2,5-diamino-1,4:3,6-dianhydro-2,5-dideoxy-D-hexitol

Method for preparing diamino-dianhydro-dideoxyhexitols, particularly 2,5-diamino-1,4:3,6-dianhydro-2,5-dideoxy-D-hexitol. The invention related to a method for preparing diamino-dianhydro-dideoxyhexitols, particularly preferably 2,5-diamino-1,4:3,6-dianhydro-2,5-dideoxy-D-hexitol.




oxy

Substituted phenoxyethyl (isopropyl) acyloxyalkyl phosphonate comprising phosphorusheterocyclic ring and having herbicidal activity, and preparation therefor

A substituted phenoxyethyl(isopropyl)acyloxyalkyl phosphonate having phosphorusheterocyclic ring and having herbicidal activity, with a general formula of I, wherein R represents 5,5-dimethyl-1,3,2-dioxaphosphorinan-2-one-2-yl, or 1-oxo-1-phospha-2,6,7-trioxabicyclo[2,2,2]octan-4-yl, or 1-sulfo-1-phospha-2,6,7-trioxabicyclo 2,6,7-trioxabicyclo[2,2,2]octan-4-yl; R1 represents H, C1-C4 alkyl, phenyl, furyl, pyridyl, or phenyl substituted with methyl, methoxyl, nitro or chloro; R2 represents H, methyl, and methyl only if R in the general formula I is 1-sulfo-1-phospha-2,6,7-trioxabicyclo[2,2,2]octan-4-yl as phosphorusheterocyclic ring; X and Y represent H, halogen, C1-C4 alkyl or trifluoromethyl, and X and Y are the same or different. The compounds according to the present invention may be used as active component of dicotyledonous broadleaf weed herbicides.




oxy

3-hydroxy-6H-benzo [C] chromene-6-one derivative and manufacturing method thereof

A method of manufacturing a compound or a salt thereof expressed with a formula (III) below, characterized by causing a compound or a salt thereof expressed with a formula (I) below and a compound or a salt thereof expressed with a formula (II) below to react in the presence of carbonate and copper salt or in the presence of hydroxide salt, carbonate, and copper salt.




oxy

Oxidation process to produce a purified carboxylic acid product via solvent displacement and post oxidation

Disclosed is a process to produce a dry purified carboxylic acid product comprising furan-2,5-dicarboxylic acid (FDCA). The process comprises oxidizing at least one oxidizable compound selected from the following group: 5-(hydroxymethyl)furfural (5-HMF), 5-HMF esters (5-R(CO)OCH2-furfural were R alkyl, cycloalkyl and aryl), 5-HMF ethers (5-R'OCH2-furfural, where R'=alkyl, cycloalkyl and aryl), 5-alkyl furfurals (5-R″-furfural, where R″=alkyl, cycloalkyl and aryl), mixed feed-stocks of 5-HMF and 5-HMF esters and mixed feed-stocks of 5-HMF and 5-HMF ethers and mixed feed-stocks of 5-HMF and 5-alkyl furfurals to generate a crude carboxylic acid slurry comprising FDCA.




oxy

Esterification of furan-2,5-dicarboxylic acid to a dialkyl-furan-2,5-dicarboxylate vapor with rectification

A process for the manufacture of dialkyl furan-2,5-dicarboxylate (DAFD) vapor composition by feeding furan-2,5-dicarboxylic acid (“FDCA”) to an esterification reactor and in the presence of an alcohol compound such as methanol, conducting an esterification reaction to form an esterification vapor containing DAFD, unreacted alcohol compound, 5-(alkoxycarbonyl)furan-2-carboxylic acid (ACFC), and water, and continuously passing the esterification vapor through an ACFC condensing zone, that can be integral with the esterification reactor, in which at least a portion of the ACFC in the esterification vapor is converted to a liquid phase condensate, and continuously discharging the esterification vapor from the ACFC condensing zone as a DAFD vapor. There is also a DAFD vapor composition containing DAFD, water, unreacted alcohol, and by-products.




oxy

Process for the preparation of 17-(3-hydroxypropyl)-17-hydroxysteroids

The present invention relates to a process for the preparation of 17α-(3-hydroxypropyl)-17β-hydroxysteroids of the formula I starting from 17-ketosteroids of the formula III via the intermediates of the formula V wherein the radicals R3, R5, R6, R7, R10, R13, R15, R16, R40, R41 and R42 have the meaning indicated in the description.




oxy

Crystallization of (20R) and (20S) analogs of 2-methylene-19-nor-24-dimethyl-1α,25-dihydroxyvitamin D3

Disclosed are methods of purifying (20R) and (20S) analogs of 2-methylene-19-nor-22-dimethyl-1α,25-dihydroxyvitamin D3 to obtain the (20R) and (20S) analogs in crystalline form. The method includes the steps of preparing a solvent of either diethyl ether or a mixture of 2-propanol and hexane, dissolving a product containing the (20R) and (20S) analog to be purified in the solvent, cooling the solvent and dissolved product below ambient temperature for a sufficient amount of time to form a precipitate of crystals, and recovering the crystals.




oxy

Oral dosage form of 25-hydroxyvitamin D

Methods and compositions for treating 25-hydroxyvitamin D insufficiency and deficiency in a patient are described herein. The method includes orally administering to the patient a delayed, sustained release formulation including a first ingredient selected from the group consisting of 25-hydroxyvitamin D2, 25-hydroxyvitamin D3, or a combination of 25-hydroxyvitamin D2 and 25-hydroxyvitamin D3, or it includes gradually administering to the patient a sterile intravenous formulation including a first ingredient selected from the group consisting of 25-hydroxyvitamin D2, 25-hydroxyvitamin D3, or a combination of 25-hydroxyvitamin D2 and 25-hydroxyvitamin D3.




oxy

Low-calcemic 16,23-diene 25-oxime analogs of 1α,25-dihydroxy vitamin D3

The present invention provides novel 16,23-diene 25-oxime ether analogs of 1,25-dihydroxy vitamin D3, compositions comprising these compounds and methods of using these compounds as inhibitors of CYP24. In particular, the novel compound of the invention are useful for treating diseases which benefit from a modulation of the levels of 1,25-dihydroxy vitamin D3, for example, cell-proliferative disorders.




oxy

Crystallization of (20R)-2-methylene-19-nor-24-difluoro-1α,25-dihydroxyvitamin D3

Disclosed are methods of purifying the compound (20R)-2-methylene-19-nor-24-difluoro-1α,25-dihydroxyvitamin D3 to obtain the compound in crystalline form. The methods typically include the steps of dissolving a product containing the compound in a solvent comprising hexane and 2-propanol, cooling the solvent and dissolved product below ambient temperature for a sufficient amount of time to form a precipitate of crystals, and recovering the crystals.




oxy

3-desoxy-2-methylene-19-nor-vitamin D analogs and their uses

This invention discloses 3-desoxy-2-methylene-19-nor-vitamin D analogs, and specifically (20S)-3-desoxy-2-methylene-1α,25-dihydroxy-19-nor-vitamin D3 and (20R)-3-desoxy-2-methylene-1α,25-dihydroxy-19-nor-vitamin D3 as well as pharmaceutical uses therefor. These compounds exhibit relatively high binding activity and pronounced activity in arresting the proliferation of undifferentiated cells and inducing their differentiation to monocytes thus evidencing use as anti-cancer agents especially for the treatment or prevention of osteosarcoma, leukemia, colon cancer, breast cancer, skin cancer or prostate cancer. These compounds also exhibit relatively high calcemic activity evidencing use in the treatment of bone diseases.