| 摘要 |
1516414 Trimethylsilyl derivatives of prostaglandins IMPERIAL CHEMICAL INDUSTRIES Ltd 27 July 1976 [22 Aug 1975] 34969/75 Heading C3S [Also in Division C2] Trimethylsilyl derivatives of prostaglandins of the formula wherein R<2> is H, R<3> is H or CH3, X is transvinylene or ethylene; Y is C1-5 alkyleneoxy, wherein the oxygen atom is attached to R<5>, C1-5 alkylone or a direct bond; R<5> is phenyl optionally substituted by a chlorine atom or a trifluoromethyl radical; n is 1 or 2; R<4> is trimethylsilyl; R<1> is methoxycarbonyl, or trimethylsilyloxycarbonyl and the ring system is 3alpha,5alpha-bis (trimethylsilyloxy) cyclopenta - 1,2-diyl or 3alpha-trimethylsilyloxy - 5 - methoxy - iminocyclopenta-1,2-diyl, or R<1> is methoxymethyl or trimethylsilyloxymethyl and the ring system is 3alpha,5alpha - bis(trimethylsilyloxy)cyclopenta - 1,2- diyl, are prepared by standard methods. |
