Drospirenone Ether Impurity

90376-21-9

5'-Deoxo Drospirenone;(4aR,4bS,6aS,7S,7aS,8aS,8bS,8cR,8dR,9aR)-4a,6a-dimethyl-4,4a,4b,4',5,5',6,6a,7a,8,8a,8b,8c,8d,9,9a-hexadecahydro-3'H-spiro[cyclopropa[4,5]cyclopenta[1,2-a]cyclopropa[l]phenanthrene-7,2'-furan]-2(3H)-one; Spiro[17H-dicyclopropa[6,7:15,16]cyclopenta[a]phenanthrene-17,2′(3′H)-furan]-3(2H)-one, 1,4′,5′,6,7,8,9,10,11,12,13,14,15,16,20,21-hexadecahydro-10,13-dimethyl-, [6R-(6α,7α,8β,9α,10β,13β,14α,15α,16α,17β)]-;