abstract |
The present invention relates to C-ring-substituted pregan-4-ene-21,17-carbolactone of formula (I) <Formula I> Where R 6 , 7 is α- or β-methylene, R 9 is a hydrogen atom, R 11 is a bromine, chlorine or fluorine atom, R 9 and R 11 together form a bond. This novel compound is a progesteroneic antimineralloccortoid. |