16α,17α-epiminopregn-5-ene-3β,21-diol-20-one-3,21,N-triacetate

16α,17α-21-acetonide of 16α,17α-epiminopregn-5-en-3β,21-diol-20-one

2'-acetylamino-3β-hydroxy-(16β)-16H-pregn-5-eno[16,17-d]thiazol-20-one