摘要:
1-Hydroxy steroids of formula I ##STR1## wherein R.sub.1 and R.sub.2 are independently hydrogen or alkanoyl of 1-8 carbon atoms are distinguished by strong progestational activity and only very minor androgenic side effects.
摘要:
Steroids of the formula ##STR1## wherein R.sub.1 and R.sub.2 are identical or different and each is hydrogen or the residue of an organic or inorganic acid,and for the esters (R.sub.1 or R.sub.2 is not H) capable of salt formation, the salts thereof, possess valuable pharmacoligical properties, e.g., good antiandrogenic activity with low progestational activity.
摘要:
Steroids of the formula ##STR1## wherein R.sub.1 and R.sub.2 are identical or different and each is hydrogen or the residue of an organic or inorganic acid,and for the esters (R.sub.1 or R.sub.2 is not H) capable of salt formation, the salts thereof, possess valuable pharmacological properties, e.g., good antiandrogenic activity with low progestational activity.
摘要:
11-Methylene-.DELTA..sup.15 -steroids of Formula I ##STR1## wherein R.sup.1 is hydrogen or acyl andR.sup.2 is ethynyl, chloroethynyl or propynyl,are distinguished by a strong progestational activity and exhibit only a very low androgenic side effect.
摘要:
1.alpha.-Oxysteroid of the formula ##STR1## wherein R.sub.1 is methyl or ethyl,R.sub.2 and R.sub.3 each are hydrogen or alkanoyl of 1-8 carbon atoms, andR.sub.4 is hydrogen or hydrocarbon of 1-4 carbon atoms,Are progestestionally active and useful in oral contraceptive and menopausal compositions.
摘要翻译:1α-类型的化学式其中R 1是甲基或乙基,R 2和R 3各自是氢或碳原子的烷酰基,且R 4是氢或1-4个碳原子的烃,ARE PROGESTESTIONALLY ACTIVE AND USEFUL 口服合同和男性组成。
摘要:
Novel agents and methods for triggering abortions employ a compound of the formula ##STR1## wherein R.sub.1 is methyl or ethyl, R.sub.2 and R.sub.3 are hydrogen or alkanoyl of 1-8 carbon atoms, and R.sub.4 is hydrogen or ethynyl.
摘要:
1.alpha.-Oxysteroid of the formula ##STR1## wherein R.sub.1 is methyl or ethyl,R.sub.2 and R.sub.3 each are hydrogen or alkanoyl of 1-8 carbon atoms, andR.sub.4 is hydrogen or hydrocarbon of 1-4 carbon atoms,Are progestestionally active and useful in oral contraceptive and menopausal compositions.
摘要翻译:1α-类型的化学式其中R 1是甲基或乙基,R 2和R 3各自是氢或碳原子的烷酰基,且R 4是氢或1-4个碳原子的烃,ARE PROGESTESTIONALLY ACTIVE AND USEFUL 口服合同和男性组成。
摘要:
D-homo-20-ketopregnanes of the formula ##STR1## wherein R.sub.1 is oxygen, ##STR2## in which R.sub.5 is hydrogen or lower acyl; R.sub.2 is hydrogen or methyl; R.sub.3 is oxygen, ##STR3## or two hydrogen atoms; R.sub.4 is hydrogen, hydroxy or acyloxy; R.sub.6 is hydrogen or methyl; and R.sub.7 is hydrogen, acetyl, hydroxy or lower acyloxy in the .alpha.- or .beta.-position possess CNS-depressant activity, including anesthesia upon parenteral administration, and are produced by hydrogenating the corresponding steroids having double bonded C.sub.5 and/or C.sub.16 carbon atoms.
摘要:
Process for the production of optically active (+)-bicyclo[3.3.0]octanol derivatives of formula (+)-I, in which R.sub.1 and R.sub.2 represent jointly an oxygen atom or the double-bond residue --O--X--O-- with X as a straight or branched-chain alkylene with 1-7 C-atoms, or R.sub.1 and R.sub.2 represent separately the residue OR.sub.5 with R.sub.5 as a straight or branched-chain alkyl with 1-7 C-atoms, and R.sub.3 the residue COOZ with Z as a hydrogen atom, straight or branched chain alkyl with 1-7 C atoms, cycloalkyl with 3-6 C atoms, phenyl or aralkyl with 7-10 atoms or R.sub.3 is the residue --(CH.sub.2).sub.n --O--COR.sub.4 with n having the meaning 1-4 and R.sub.4 as a straight or branched-chain alkyl with 1-7 C atoms, cycloalkyl with 3-6 C atoms, phenyl or aralkyl with 7-10 C atoms. The process is characterized in that racemic 3.alpha.-cyloxy-cis-bicyclo[3.3.0]-octane derivatives of formula (+)-II, wherein R.sub.1, R.sub.2 R.sub.3 and R.sub.4 have the above meanings, are subjected enzymatically or microbiologically to a stereospecific acylate hydrolsis and the (+)-bicyclo[3.3.0]-octanol derivative produced is separated from the unsaponified bicyclo[3.3.0]-octanol acylate of formula (-)-II or the unsaponified enantiomers (+)-II are separated from the saponified bicyclo[3.3.0]octanol derivative (-)-I and then subjected to chemical acylate hydrolysis.
摘要:
A process for the preparation of 3.beta.,7.beta.,15.alpha.-trihydroxy-5-androsten-17-one and the 3,15-dipivalate thereof comprises epimerizing 3.beta.,7.alpha.,15.alpha.-trihydroxy-5-androsten-17-one in the presence of a ketone with or without a solvent, with dilute mineral acid and subsequent treatment with an organic base, and optionally subsequently esterifying the 3.beta.- and 15.alpha.-positions of the resultant 3.beta.,7.beta.,15.alpha.-triol with a reactive derivative of pivalic acid.