25, 28-dihydroxyergocalciferol and 1,25,28-trihydroxyergocalciferol compositions thereof and their use in the treatment of hyperproliferative disease

摘要

Compounds of the formula <IMAGE> I wherein R'' is hydrogen or hydroxy, epimers at the 24-position of compounds of formula I, diastereomeric mixtures of compounds of formula I which are epimeric at the 24-position, and mixtures thereof, which are useful as agents for the treatment of psoriasis, and osteoporosis, are described.