Rp. Litvinovskaya et al., Synthesis and transformations of 20-isoxazolylsteroids with modified D ring: I. Synthesis of 16 alpha,17 alpha-epoxyderivatives, RUSS J ORG, 37(6), 2001, pp. 787-792
Synthesis of 16 alpha, 17 alpha -epoxy-20-isoxazolylsteroids was carried ou
t starting with dehydro-pregnenolone acetate. Transformation procedures for
preparation therefrom of open-chain compounds were considered. Physico-che
mical characteristics of compounds synthesized were investigated.