3-SUBSTITUTED AND 3,3-DISUBSTITUTED 4-OXORETINOIC ACIDS AND THEIR ESTERS

摘要

There are disclosed 3-substituted and 3,3-disubstituted all-trans-4-oxoretinoic acids and 3-substituted and 3,3-disubstituted 13-cis-4-oxoretinoic acids and their lower alkyl esters.