摘要:
A process for preparing an 11.beta.-hydroxy steroid of the formula ##STR1## wherein represents a single bond or a double bond;X is hydrogen, fluorine, chlorine or methyl; andV is methylene, ethylene, ethylidene or vinylidene;comprises fermenting an 11-deoxy steroid of the formula ##STR2## wherein , X and V are as defined above,R.sub.1 is hydrogen or C.sub.1-6 -alkyl; andR.sub.2 is C.sub.1-6 -alkyl;with a fungal culture of a genus Curvularia.
摘要:
Corticoids of the formula ##STR1## wherein represents a single bond or a double bond;X is hydrogen, fluorine, chlorine or methyl;Y is hydrogen and Z is hydrogen, fluorine or chlorine, orY and Z together are a carbon-to-carbon bond;V is .beta.-hydroxymethylene, .beta.-chloromethylene or carbonyl;W is methylene, ethylidene or vinylidene;Q is oxygen or sulfur;R.sub.1 is alkyl of 1-8 carbon atoms, alkyl of 2-8 carbon atoms with an oxygen atom between two of the carbon atoms or benzyl, and R.sub.2 is hydrogen or alkyl of 1-4 carbon atoms, orR.sub.1 and R.sub.2 collectively are trimethylene or tetramethylene; andR.sub.3 is hydrogen, fluorine, chlorine, hydroxy, or hydroxy esterified by a C.sub.1-16 hydrocarbon carboxylic acid have valuable pharmacological properties, e.g., anti-inflammatory activity.
摘要:
A process for the preparation of pregnane derivatives of the formula ##STR1## wherein R.sub.1 is methyl or ethyl and R.sub.2 is methyl, ethyl, formyl, or acetyl, comprises reacting a nitrate ester of the formula ##STR2## wherein R.sub.1 is as above, in the presence of a catalytic amount of a mercury salt of a lower carboxylic acid with formic acid or acetic acid in a dipolar aprotic or basic solvent or with methanol or ethanol in an aprotonic, especially water-miscible, solvent in the presence of a mineral acid.
摘要:
20-Cyano-17.alpha.-H steroids having as the 17-position substituent the group ##EQU1## wherein R is H, alkyl of 1-8 carbon atoms or benzyl, having a 13-methyl or 13-ethyl group and which are unsubstituted or substituted with an .alpha.-methyl group in the 16-position are converted to the corresponding 20-keto steroids by reaction in an aprotic solvent with a deprotonating agent containing an alkali metal, an alkaline earth metal, copper(I) or thallium(I), and optionally additionally with a copper(I) salt or a thallium(I) salt or a silver(I) salt, and thereafter conducting an oxidative splitting reaction with oxygen. The thus-produced 17.beta.-oxalyl steroids possess pharmacological activity, e.g., anti-inflammatory activity, or are useful as intermediates for the production of pharmacologically active steroids.
摘要:
Steroids of the formula ##SPC1##Wherein X is a hydrogen atom, a halogen atom or methyl; Y is a hydrogen atom or a halogen atom; Z is carbonyl, .beta.-acyloxymethylene or, when Y is a hydrogen atom, also methylene; R.sub.1 is a hydrogen atom or methyl; R.sub.2 is a hydrogen atom, an alkali metal atom or optionally substituted hydrocarbon; and --A--B-- is --CH=CH--, --CCl=CH-- or when at least one of X, Y and R.sub.1 is other than a hydrogen atom, --CH.sub.2 --CH.sub.2 --, which can be produced by oxidizing a corresponding 20-hydroxy steroid or a corresponding 21-aldehyde, possess topical anti-inflammatory activity.
摘要:
3-Oxyiminopregnane-21-carbolactones of formula I, wherein R is as defined by the specification, their production and use as pharmaceutical agents are described.
摘要:
Described are racemic and enantiomerically pure chiral phenyldihydrofuranones, their preparation and their use in drugs (selective inhibition of the cAMP-specific phosphodiesterase IV).
摘要:
Synthetically produced cephalostatin analogues of the formula I described in the disclosure, synthetic methods for preparing the cephalostatin analogues, pharmaceutical compositions containing the analogues and methods for using the analogues as active agent in pharmaceutical uses, particularly due to their cytotoxic activity.
摘要:
A process for the production of 3-deoxy-4-ene steroids of the general formula I ##STR1## is described, in which R.sub.1, R.sub.2 and R.sub.3 mean a hydrogen atom or a methyl group,R.sub.4 represents a lower alkyl group, a phenyl group or a free, esterified or etherified hydroxy group,R.sub.5 symbolizes a hydrogen atom, a vinyl group or the grouping --C.tbd.CR.sub.6 with R.sub.6 meaning a hydrogen atom, an alkyl group with a maximum of 4 carbon atoms or a halogen atom,X represents a methylene group, a fluoromethylene group, an ethylidene group or a vinylidene group,Y and U represent a methylene group or an ethylidene group andZ symbolizes a methylene group, an ethylidene group, a vinylidene group, a chloromethylene group or a hydroxymethylene group and in which the bonds represent three single bonds or one double bond and two single bonds or a conjugated double bond.
摘要:
(Z)-17.alpha.-halovinyl steroids of general Formula I ##STR1## wherein . . . . is a single bond or a double bond,V is a carbon-to-carbon bond or a methylene group,R.sub.1 is a hydrogen atom or a methyl group,X is a chlorine atom, a bromine atom or an iodine atom, andA symbolizes the remainder of the steroid molecule,are prepared by hydrogenating a 17.alpha.-haloethynyl steroid of formula II with diimide. ##STR2## wherein . . . , V, R.sub.1, X and A have the meanings given above. The compounds of Formula I include both known and novel compounds, all of which are pharmacologically active.