17α-Hydroxy-21-chloro-9β,11β-epoxy-16α-methylpregna-1,4-diene-3,20-dione

(4aS,4bS,5aS,6aS,7R,8R,9aS,9bS)-7-(2-chloroacetyl)-7-hydroxy-4a,6a,8-trimethyl-5a,6,6a,7,8,9,9a,9b,10,11-decahydrocyclopenta[1,2]phenanthro[4,4a-b]oxiren-2(4aH)-one