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