Steroidal 1,4,6-trien-3-ones which are precursors of 1alpha-hydroxylated vitamin D and its analogs were synthesized starting from 3beta-hydroxy-Delta(5)-20-dihydroisoxazolyl steroids and their open-chain derivatives.
Steroidal 1,4,6-trien-3-ones which are precursors of 1alpha-hydroxylated vitamin D and its analogs were synthesized starting from 3beta-hydroxy-Delta(5)-20-dihydroisoxazolyl steroids and their open-chain derivatives.