New derivatives g - lactone and g - hemiacetal bicyclic

摘要

1456838 Silylated prostaglandins PFIZER Inc 8 Nov 1973 [8 Nov 1972] 51997/73 Heading C3S [Also in Division C2] N - Methansulphonyl - 15 - (5,6 - dimethoxy- 2 - indanyl) - 9,11,15# - tris - (dimethylisopropylsilyloxy) - 16,17,18,19,20 - pentanor - 13 - trans-prostenamide is prepared by hydrogenating N-methanesulphonyl-15-(5,6-dimethoxy-2- indanyl) - 9,11,15# - tris - (dimethylisopropylsilyloxy) - 16,17,18,19,20 - pentanor - 5 - cis, 13- trans-prostadienamide, resulting from the reaction between dimethylisopropylchlorosilane and N - methanesulphonyl - 9,11,15# - trihydroxy - 16,17,18,19,20 - pentanor - 5 - cis, 13- trans - prostadienamide. 16 - (2 - Indonyl)- 11,15 - bis - (dimethylisopropylsilyloxy) - 9- oxo - 17,18,19,20 - tetranor - 13 - trans - prostenoic acid and 16-(2-indanyl)-11,15-bis-(dimethylisopropylsilyloxy) - 9 - oxo - 17,18.19,20- tetranor-5-cis, 13-trans-prostadienoic acid are obtained in a similar manner.