专利号:US-6448413-B1 优先权日:1999-06-10 标题:Process for the synthesis of a-nor-seco compounds with sterane skeleton 发明人:SANTA CSABA; TUBA ZOLTAN; MAHO SANDOR; SZELES JANOS; BALOGH GABOR; BRLIK JANOS; TRISCHLER FERENC; SZILAGYI GABRIELLA; BAKCSI ERIKA 权利人:RICHTER GEDEON VEGYESZET 摘要:The invention relates to a new process for the synthesis of 17β-hydroxy-17α-methyl-1,3-seco-2-nor-5α-androstane-3-acid derivatives of formula (I) n wherein the meaning of Z is carboxyl or formyl group and n to the new secoindoxylidene carboxylic acid derivatives of formula (II) n wherein R 1 and R 2 independently are C 1 -C 4 alkyl or alkoxy group, hydrogen or halogen atom—which are intermediates for preparing the compounds of formula (I). n The 17β-hydroxy-17α-methyl-1,3-seco-2-nor-5α-androstane-3-acid derivatives of formula (I) are intermediates in the synthesis of oxandrolon (17β-hydroxy-17α-methyl-2-oxa-5α-androstane-3-one), which is used as anabolic in therapy.
专利号:US-6583298-B1 优先权日:1999-06-10 标 题:Process for the synthesis of 17β-hydroxy-17α-methyl-2-oxa-5α-androstane-3-one 发明人:SANTA CSABA; TUBA ZOLTAN; MAHO SANDOR; SZELES JANOS; FERENCZI KATALIN; HORVATH PETER; LANCOS KRISZTINA; MESTER TAMAS; TROMPLER ARPAD 权利人:RICHTER GEDEON VEGYESZET 摘要:The invention relates to a new process for the synthesis of 17β-hydroxy-17α-methyl-2-oxa-5α-androstane-3-one of formula (I). The process according to the invention is as follows: the 17β-hydroxy-17α-ethyl-1,3-seco-2-nor-5α-androstane-1,3-diacid of formula (III) is transformed into the ring-closed 17β-hydroxy-17α-methyl-1,3-seco-2-nor-5α-androstane-1,3-diacid anhydride of formula (II) in an inert solvent or without solvent with a C 2 -C 3 alkan acid anhydride or a substituted carbodiimide of formula R 1 —Nâ•?Câ•?N—R 2 — wherein R 1 and R 2 independently are C 1 -C 6 alkyl group, C 1 -C 6 alkyl group substituted by tertiary or quaternary amino group or 1-3 phenyl group, C 5 -C 6 cycloalkyl group, aryl group substituted by 1-3 methoxy, tertiary amino, nitro, C 1 -C 4 alkyl group or 1-3 halogen atom—and the obtained compound of formula (II) is reduced regioselectively by a complex alkali metal hydride in an inert solvent The new 17β-hydroxy-17α-methyl-1,3-seco-2-nor-5α-androstane-1,3-diacid anhydride of ormula (II) is also the subject of the invention.
专利号:US-2003032817-A1 优先权日:2001-05-15 标题:Process for the synthesis of oxandrolone 发明人:CABAJ JOHN E; KAIRYS DAVID L; ZIZELMAN PAUL M 摘要:A process is disclosed for synthesizing oxandrolone 1 involving the bromination of compound 2 to obtain compound 3, followed by the highly selective de-bromination of compound 3 to obtain compound 4, followed by the oxidation of compound 4 to obtain compound 6, and finally the reduction of compound 6 to obtain oxandrolone 1.
专利号:WO-9412651-A1 优先权日:1992-12-01 标题 :Enzymatic synthesis of sugar alcohol esters 发明人:BARFOED MARTIN; SKAGERLIND JAN PETER 权利人:NOVO NORDISK AS; BARFOED MARTIN; SKAGERLIND JAN PETER 摘要:A method of preparing a compound of the general formula (I): R1-COO-X-O-R2, wherein R1-CO is the acyl group of a carboxylic acid which may be saturated or unsaturated, O-X-O is a saccharide moiety or a sugar alcohol moiety corresponding to a saccharide or a sugar alcohol of the general formula X(OH)¿2?, and R?2¿ is hydrogen, acetyl, or an alkyl group.
专利号:EP-1354593-B1 优先权日:2002-04-08 标题 :use of an extract of a non-photosynthetic filamentous bacterium as an agent for enhancing the endogenous synthesis of superoxide dismutase 发明人:MAHE YANN; MEYBECK ALAIN 权利人:OREAL 摘要:Promoting endogenous production of superoxide dismutase (SOD) comprises the use of an extract (I) of non-photosynthetic, non-fruiting filamentous bacteria in cosmetic, dermatological or pharmaceutical applications. Use of an extract (I) of non-photosynthetic, non-fruiting filamentous bacteria: (1) in a composition based on a cosmetic medium, as an agent for promoting endogenous production of superoxide dismutase (SOD); or (2) for production of a pharmaceutical or dermatological composition for promoting endogenous production of SOD. Independent claim are also included for: (1) a composition comprising a physiological medium containing Vitreoscilla filliformis extract (Ia) and lycopene (specifically at 0.000000001-0.1 wt. %) or a compound having catalase activity and/or a compound having peroxidase activity; and (2) cosmetic treatment methods for treating loss of firmness and/or elasticity of the skin or for treating skin exposed to sunlight, involving application of compositions containing (Ia).
专利号:EP-1194154-B1 优先权日:1999-07-20 标 题:Use of propionic bacteria for producing propionic acid and/or propionates in the colon 发明人:ROUSSEL EDMOND DANIEL; LEGRAND CHARLES GABRIEL; LEGRAND MARC HENRI; ROLAND NATHALIE; BOUGLE DOMINIQUE 权利人:STANDA LAB SA 摘要:The invention concerns the use of propionic bacteria selected according to their low propensity to autolysis and their resistance to bile salts to obtain a current food composition or a dietetic composition of a medicine absorbable by a human or animal, prepared in such a way that the bacteria are well protected at least partially against gastric acidity, containing at least 10<6> cell/grams of said bacteria, capable of stimulating and increasing significantly the synthesis of propionic acid and/or propionate and, as the case may be, acetic acid and/or acetate at the colon by anaerobic bacterial fermentation.
摘要:21 CFR Sections 1308.11-1308.15 摘要:S109 | PARCEDC | List of 7074 potential endocrine disrupting compounds (EDCs) by PARC T4.2 | DOI:10.5281/zenodo.10944198 摘要:Joosten, A.; Brioche, J., Science of Synthesis: Modern Strategies in Organofluorine Chemistry , (2024) 1, 24. 摘要:Ruskin, J.; Lectka, T., Science of Synthesis: Modern Strategies in Organofluorine Chemistry, (2025) 2. 摘要:PIERRE R, CAHN J, HEROLD M, GEORGES G. [Effects of 21-hydroxypregnanedlone and methylandrostanolone on the central nervous system]. Therapie. 1958;13(3):460–3.