摘要:
Sterol derivatives of the formula ##STR1## wherein R.sub.1 is a hydrogen atom and R.sub.2 is lower alkoxy, or R.sub.1 and R.sub.2 collectively are lower alkylenedioxy and R.sub.3 is a sterol hydrocarbon side chain are converted to the corresponding androsten-17-ones by the oxidative degradation activity of a species of microorganism which degrades sterol side chains, preferably of the genus Mycobacterium. The ether group of those compounds wherein R.sub.1 is a hydrogen atom and R.sub.2 is lower alkoxy, and the corresponding 17.beta.-hydroxy and 17.alpha.-hydrocarbon-17.beta.-hydroxy compounds is cleaved by reaction with an alkanoic acid chloride or anhydride in the presence of a Lewis acid.
摘要:
C-homoestratrienes of the formula ##STR1## wherein ##STR2## R.sub.1 and R.sub.2 are the same or different, and each is hydrogen, acyl, alkyl, cycloalkyl or tetrahydropyranyl; andR.sub.3 is hydrogen, ethynyl or chloroethynyl; possess very good estrogenic properties.
摘要:
A process for the preparation of 17.beta.-hydroxy-20-alkoxypregnane-21-oic acid derivatives of the formula ##STR1## WHEREIN R.sub.1 is methyl or ethyl;R.sub.2 is hydrogen or methyl, either being in the .alpha.-or .beta.-position;R.sub.3 is lower alkyl of 1-4 carbon atoms;R.sub.4 is alkyl of 1-8 carbon atoms or benzyl; andSt is the residue of a steroid ABC ring system;Comprises reacting (a) a 17-oxo compound of the formula ##STR2## WHEREIN R.sub.1 and R.sub.2 are as defined above andSt* is said steroid ABC ring system residue, St, in a form which is chemically compatible with said reaction;With (b) an enolate ion of an alkoxyacetic acid alkyl ester of the formula ##STR3## wherein R.sub.3 and R.sub.4 are as defined above.
摘要:
A process for the preparation of trans-decahydronaphthalene compounds of Formula I ##STR1## wherein X is lower alkyl, --(CH.sub.2).sub.3 --Z--R.sub.2, ##STR2## --(CH.sub.2).sub.3 COOR.sub.4, or --(CH.sub.2).sub.3 CN; Y and Z are ketalized carbonyl or free, esterified, or etherified hydroxymethylene;U is halogen;R.sub.1, r.sub.2, and R.sub.3 are lower alkyl; andR.sub.4 is alkyl;Wherein an octahydronaphthalene compound of Formula II ##STR3## is converted, in the presence of bases, by reaction of a trialkyl chlorosilane of the formula(R.sub.5).sub.3 Si--Clwherein the R.sub.5 each are lower alkyl group, to a hexahydronaphthalene compound of the formula ##STR4## The hexahydronaphthalene compound is hydrogenated, in an inert solvent with hydrogen in the presence of a platinum-, palladium-, or rhodium-containing hydrogenation catalyst, to an octahydronaphthalene compound of the formula ##STR5## and a vinyl ketone of the formulaXCOCH.dbd.CH.sub.2is added to the thus-obtained octahydronaphthalene compound in an inert solvent in the presence of a Lewis acid.
摘要:
Novel process for the preparation of 13.beta.-alkyl-4-gonene-3,17-diones of the formula ##STR1## wherein R.sub.1 is methyl or ethyl, consists of REACTING A 7A.beta.-ALKYL,5,6,7,7A-TETRAHYDROINDANE-1,5-DIONE WITH FORMALDEHYDE AND AN ARYLSULFINIC ACID OR AN ADDUCT OF FORMALDEHYDE AND ARYLSULFINIC ACID TO PRODUCE A TETRAHYDROINDANE DERIVATIVE;Hydrogenating the tetrahydroindane derivative with hydrogen in the presence of a palladium-, platinum-, or rhodium-containing hydrogenation catalyst to produce a perhydroindane derivative;Condensing the perhydroindane derivative in the presence of a proton-accepting agent with a 7,7-alkylenedioxy-3-oxooctanoic acid ester;Treating the product obtained with a strong aqueous base and then heating the product in an inert solvent to produce a 4,5-secosteroid;Hydrogenating the 4,5-secosteroid in the presence of a palladium-, platinum-, rhodium-, or nickel-containing hydrogenation catalyst; andHydrolyzing and cyclizing the hydrogenated 4,5-secosteroid by treatment with a strong acid.
摘要:
16 .alpha.-Alkyl steroids of the formula ##STR1## wherein R.sub.1 is hydrogen or methyl,R.sub.2 is hydrogen, alkyl, acyl, or glycosylR.sub.3 is hydrogen or a substituted or unsubstituted, saturated or unsaturated lower hydrocarbon residue, andR.sub.4 is methyl, ethyl or propyl, exhibit strong progestational activity and a very low androgenic activity.
摘要:
16-dimethylaminomethylene-3-methoxy-1,3,5(10)-estratrien-17-one is a valuable new preparative intermediate which may be used, e.g., to prepare 17.beta.-hydroxy-16.beta.-ethyl-4-estren-3-one or 16.beta.-ethylestradiol.
摘要:
D-homosteroids of the formula ##STR1## WHEREIN R.sup.3.alpha. is hydrogen, R.sup.3.beta. is hydroxy, lower alkanoyloxy or aroyloxy and R.sup.3.alpha. and R.sup.3.beta. taken together are oxo; R.sup.17a.alpha. is hydrogen, lower alkyl, ethynyl, vinyl, allyl, methallyl, propadienyl, 1-propynyl, butadiynyl or chloroethynyl; R.sup.17a.beta. is hydrogen, alkanoyl, aroyl, lower alkyl, cycloalkyl-lower-alkyl, benzyl, furfuryl or tetrahydropyranyl; R.sup.18 is hydrogen or methyl and the dotted line in the C-ring denotes an additional carbon to carbon bond in the 11,12-position andProcesses for the preparation thereof are disclosed.The D-homosteroids of the present invention are useful as ovulation inhibitors and androgenic/anabolic agents.
摘要:
A 14.alpha.,17.alpha.-bridged estratriene of formula I ##STR1## wherein (a) OR.sup.3 is in .alpha.-positionR.sup.1, R.sup.2 and R.sup.3, each independently are (i) hydrogen, (ii) ##STR2## in which R.sup.4 is an organic radical with up to 11 carbon atoms or (iii) --(CH.sub.2).sub.n COOH wherein n=1-4, or (iv) R.sup.1 is a benzyl, C.sub.1 -C.sub.8 alkyl or C.sub.3 -C.sub.5 cycloalkyl, or(b) OR.sup.3 is in .beta.-positionR.sup.1, R.sup.2 and R.sup.3, each independently are (i) hydrogen, (ii) an acyl group with 1 to 12 carbon atoms or (iii) R.sup.1 is C.sub.1 -C.sub.8 alkyl, and in both (a) and (b) A--B is an etheno or ethano bridge.
摘要:
New 19,11.beta.-bridged steroids of the general formula I ##STR1## where R.sup.1 stands for a methyl or ethyl radical,R.sup.2 for a hydrogen or chlorine atom or a C.sub.1 -C.sub.4 -alkyl radical,B and G, which are the same or different, respectively for a hydrogen atom, a C.sub.1 -C.sub.4 -alkyl radical or, together, for a second bond between the carbon atoms 6 and 7,B and R.sup.2 together for a methylene or an ethylene group,Z for the radical of a pentagonal or hexagonal ring, which is possibly substituted and possibly unsaturated,V stands for a possibly substituted carbocyclic or heterocyclic aryl radical,the ring A for ##STR2## M and N together meaning a second bond or M a hydrogen atom and N a hydroxy group,X means an oxygen atom, two hydrogen atoms or a hydroxyimino grouping N.about.OH,R.sup.3 and D, which are the same or different, respectively a hydrogen atom, a nitrile radical or a C.sub.1 -C.sub.4 -alkyl radical or, together, a methylene or ethylene group,E a hydrogen atom or a C.sub.1 -C.sub.4 -alkyl radical,D and E together meaning a second bond between carbon atoms 1 and 2 or together a methylene group ##STR3## with R.sup.11 in the meaning of a hydrogen atom or a C.sub.1 -C.sub.8 -alkyl radical,are described as well as their pharmaceutically tolerated addition salts with acids. The new compounds possess valuable pharmacological properties.