Patents
Patents for C07J 75 - Processes for the preparation of steroids, in general (1,657)
06/1999
06/23/1999EP0923381A1 Method to obtain oestrogens from mare's urine
06/10/1999WO1999028337A1 15-methyl-cyclopropanosteroids and method for the production thereof
06/10/1999WO1999028336A1 METHOD OF PREPARING 16α,17α-DIALKYLATED STEROIDS
06/10/1999DE19753363A1 15-Methyl-cyclopropanosteroide und Verfahren zu ihrer Herstellung 15-methyl-cyclopropanosteroide and processes for their preparation
06/10/1999CA2299396A1 Method of preparing 16.alpha.,17.alpha.-dialkylated steroids
06/01/1999US5908944 Copper compound catalyst
05/1999
05/26/1999EP0633892B1 N-T-BUTYL-ANDROST-3,5-DIENE-17-beta-CARBOXAMIDE-3-CARBOXYLIC ACID POLYMORPH A
05/19/1999CN1043426C Pregna-4,9(11), 16-triene-3,20-dione derivs. prepn. method
05/06/1999EP0589034B1 Method for making 3-alpha-hydroxy,3-beta-substituted-pregnanes
04/1999
04/28/1999CN1215059A Extration of steroid compound from rubber seeds
04/14/1999EP0907657A1 Process for hydrogenating unsaturated plant-based compounds and regeneration of a used catalyst
04/07/1999EP0570454B1 Novel steroids
04/07/1999CN1213374A Process for hydrogenating unsaturated plant-based compounds and regeneration of used catalyst
04/06/1999US5892028 17, 20-epoxy steroids
03/1999
03/31/1999EP0904339A1 Sterol extraction with polar solvent to give low sterol, high triglyceride, microbial oil
03/23/1999US5886184 Finasteride processes
03/17/1999CN1042539C 11,21-bisphenyl-19-norpregnane derivatives
03/16/1999US5883087 Androstane steroids as neurochemical initiators of change in human hypothalamic function and related pharmaceutical compositions and methods
02/1999
02/03/1999CN1041939C Androstenones
02/03/1999CN1041937C Androstane derivatives and pharmaceutical composition containing them and process for preparing same
02/02/1999US5866559 Hormone replacement therapy; endometrioses
01/1999
01/27/1999CN1041829C Preparation of 17a-acetylene estriol-3-cyclopentana ether
12/1998
12/09/1998CN1201038A Sulfurization for oestrogen mixture
11/1998
11/11/1998CN1040647C Process for preparing 16 alpha-methylated steroids
11/04/1998EP0875515A2 "Sulfatation of estrogen mixtures"
10/1998
10/28/1998EP0674651B1 Substituted 6-azaandrostenones
09/1998
09/30/1998EP0759929A4 Oxidation of steroids having allylic groups
09/02/1998EP0783512A4 Novel androstanes for inducing hypothalamic effects
09/02/1998CN1039646C Preparation process for an 11-keto steroid derivatives
08/1998
08/11/1998US5792759 Steroids, useful for treatement of heart failure and hypertension
07/1998
07/21/1998US5783571 Method of altering hypothalamic function by nasal administration of estrene steroids
06/1998
06/23/1998US5770748 20-alkanoyloxy-pregnadiene-3-one-21-nitrile intermediates foroxoetiocholenic acid
06/18/1998CA2550897A1 Processes for preparation of 9,11-epoxy steroids and intermediates useful therein
06/18/1998CA2550659A1 Processes for preparation of 9,11-epoxy steroids and intermediates useful therein
06/02/1998US5760256 Reduction; epoxidation; hydrolysis; acylation
05/1998
05/26/1998US5756722 Intermediates for the preparation of Δ4,9(11),17(20) -pregnatriene-3-ones
05/20/1998CN1182092A New 17, 20-epoxide derivatives of pregnane
04/1998
04/15/1998EP0685488B1 Process for producing high-purity cholesterol
04/14/1998US5739363 Using lithium salt of ethylenediamine or lithium amide in dimethyl sulfoxide
03/1998
03/05/1998WO1998008526A1 Method to obtain oestrogens from mare's urine
03/05/1998WO1998008525A1 Process to obtain oestrogens from mare's urine
02/1998
02/25/1998EP0656894B1 Isolation of tocopherol and sterol
02/11/1998EP0823436A2 Polymorphic forms I and II of finasteride
01/1998
01/21/1998CN1170599A Method for extracting steroid saponin from trigonella foenum graecum seed
01/06/1998US5705494 Anti-estrogenic activity of IIβ-substituted-19-NOR Steroids
12/1997
12/31/1997CN1168876A Method for prepn. of steroid derivative ketal
12/17/1997EP0719277B1 Androstenones
12/10/1997CN1167489A Novel estrenes for inducing hypothalamic effects
12/03/1997CN1166836A Novel androstanes with inducing hypothalamic effects
12/02/1997US5693628 11-benzaldoxime-estra-diene derivatives, methods for their production and pharmaceuticals containing these compounds
11/1997
11/20/1997WO1997043362A1 Sterol extraction with polar solvent to give low sterol, high triglyceride, microbial oil
11/11/1997US5686636 Process for preparing high-purity cholesterol
10/1997
10/07/1997US5674861 Fluorinated steroids
09/1997
09/25/1997WO1997034917A1 Process for hydrogenating unsaturated plant-based compounds and regeneration of a used catalyst
08/1997
08/13/1997EP0655071B1 METHOD OF PREPARING 1-METHYL-3-KETO-$g(D)?1,4 -STEROIDS
07/1997
07/29/1997US5652365 Process for the production of finasteride
07/23/1997EP0784627A1 Process for preparing 17-beta-substituted-androsta-3,5-dien-3-carboxylic acids
07/22/1997US5650526 Process for the preparation of an oxoetiocholenic acid
07/16/1997EP0783513A1 Novel estrenes for inducing hypothalamic effects
07/16/1997EP0783512A1 Novel androstanes for inducing hypothalamic effects
07/09/1997EP0783001A1 Androstenones
06/1997
06/25/1997EP0780397A2 New 17alpha-Cyanomethylestra-4,9-dien-derivatives, a process for the production of these compounds and pharmaceutical compositions containing them
06/25/1997CN1152578A Isomerisation of equilin
06/22/1997CA2193610A1 17 .alpha.-cyanomethylestra-4, 9-dien derivative compounds, processes for making same and pharmaceutical compositions containing same
06/19/1997CA2553379A1 Processes for preparation of 7 alpha-carboxyl 9,11-epoxy steroids and intermediates useful therein and a general process for the epoxidation of olifinic double bonds
06/19/1997CA2553378A1 Processes for preparation of 7 alpha-carboxyl 9,11-epoxy steroids and intermediates useful therein and a general process for the epoxidation of olifinic double bonds
06/19/1997CA2550580A1 Processes for preparation of 7 alpha-carboxyl 9,11-epoxy steroids and intermediates useful therein and a general process for the epoxidation of olifinic double bonds
06/19/1997CA2550568A1 Processes for preparation of 7 alpha-carboxyl 9,11-epoxy steroids and intermediates useful therein and a general process for the epoxidation of olifinic double bonds
06/18/1997CN1152316A Oxidation of steroids having allylic groups
06/04/1997EP0776904A2 Method for the preparation of steroid derivative ketal
05/1997
05/27/1997US5633392 Estrenes for inducing hypothalamic effects
05/14/1997CN1034868C Preparing method for 6 alpha, 9 alpha-difluorido-progester-3,20-diones compound
05/14/1997CN1034867C Preparing method for derivatives of progester-4,9(11), 17(20)-triene-3-one
05/07/1997EP0771816A2 Isomerisation of equilin
05/06/1997US5627289 Recovery of tocopherol and sterol from tocopherol and sterol containing mixtures of fats and fat derivatives
04/1997
04/16/1997CN1147520A 11-(substituted phenyl)-estra-4,9-diene derivatives
04/15/1997US5620966 11,21-bisphenyl-19-norpregnane derivatives
03/1997
03/19/1997EP0763541A1 11-(Substituted phenyl)-estra-4,9-diene derivatives
03/05/1997EP0759929A1 Oxidation of steroids having allylic groups
02/1997
02/04/1997US5600047 Process for producing optically active olefin
01/1997
01/21/1997US5596110 Process for the preparation of 3 β, 14 β-dihydroxyethianaldehyde
01/21/1997US5595913 Lipid fractionation
01/15/1997CN1140178A Use of new steroid compound for preparing medicaments
01/15/1997CN1140177A Pregna-4,9(11), 16-triene-3,20-dione derivs. preparing process
01/15/1997CN1140059A Process for preparing pharmaceutical composition contg. new steroid compounds
01/14/1997US5594127 Intermediates for the preparation of Δ4,9(11),17(20) -pregnatriene-3-ones
01/08/1997CN1033754C Medicine with regulating effect on beta- adrenergic receptor and M-cholinergic receptor, the prepn. method and application thereof
01/07/1997US5591735 Androstane derivatives substituted by a quaternary ammonium group in 16-position, pharmaceutical compositions containing them and process for preparing same
12/1996
12/27/1996EP0749977A2 Novel 17-hydroxyiminoalkyl and 17-hydroxyiminomethylalkenyl cyclopentaneperhydrophenanthrene derivatives active on the cardiovascular system, a process for their preparation and pharmaceutical compositions containing same
12/24/1996CA2176998A1 Novel 17-hydroxyiminoalkyl and 17-hydroxyiminomethylalkenyl cyclopentaneperhydrophenanthrene derivatives active on the cardiovascular system, a process for their preparation and pharmaceutical compositions containing same
12/17/1996US5585482 Preparation of 11-keto steroids
12/10/1996US5583127 17-iminomethylalkenyl-5 β, 14 β-androstane and 17-iminoalkyl-5 β, 14 β-androstane derivatives active on the cardiovascular system, and pharmaceutical compositions containing same
10/1996
10/23/1996CN1134155A Androstenones
10/22/1996CA2049881C Trialkylsilyl trifluormethanesulfonate mediated .alpha.-methylenic carbon functionalization of 4-aza-5.alpha.-androstan-3-one steroids
10/15/1996US5565587 Treating cholanic acid with acid chloride in presence of tertiary amine, treating resulting mixed anhydride with taurine
10/08/1996US5563259 Process for making β-O-cellobiosyl steroid derivatives and trimethyl silyl steroid intermediates used therein
09/1996
09/17/1996US5556965 Chemical intermediates for steroids
09/17/1996US5556964 Acetylization with butanal in acetonitrile in the presence of p-toluenesulfonic acid catalyst
09/17/1996US5556845 11-β substituted-19-nor steroids
09/04/1996EP0572489B1 Starting compounds for preparing calcitriol and its derivatives, method for preparing these starting compounds and intermediate products for this method
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