| abstract |
PURPOSE: The title cpds. I [Z is oxo, β-OR 1 , etc.; R 1 is II(R 4 is H or alkyl; R 2 and R 3 are H, 1-8C alkyl, phenyl, etc.; R 2 and R 3 together form a ring); Q is oxo or III(R 5 is H, -COOR 4 , etc.); the bond between C 1 and C 2 is single or double]8 cpds. IV[Z is oxo or-OH; R 6 is H or V(R 7 is alkyl, -COOR 4 , phenyl, etc.)], e.g. spiro [▵ 5 -pregnene11β, 17α, 21 triol-20-one-3,2'-thiazolidine-4'-carboxylic acid]. n COPYRIGHT: (C)1978,JPO&Japio |