(6R,7R,8R,9S,10R,13S,14R,15S,16S,17S)-3',4',6,7,8,9,11,12,13,14,15,16,20,21-Tetradecahydro-10,13-dimethylspiro(17H-dicyclopropa(6,7:15,16)cyclopenta(A)phenanthrene-17,2'(5'H)-furan)-3(10H),5'-dione

Spiro(17H-dicyclopropa(6,7:15,16)cyclopenta(A)phenanthrene-17,2'(5'H)-furan)-3,5'(10H)-dione, 3',4',6,7,8,9,11,12,13,14,15,16,20,21-tetradecahydro-10,13-dimethyl-, (6R-(6alpha,7alpha,8beta,9alpha,10beta,13beta,14alpha,15alpha,16alpha,17beta))-