Synonyms: Dispiro[cyclopropane-1,6'(17'H)-cyclopropa[15,16]cyclopenta[a]phenanthrene-17',2''(5''H)-furan]-3',5''(2'H)-dione,1',3'',4'',7',8',9',10',11',12',13',14',15',16',20'-tetradecahydro-10',13'-dimethyl-,[8'S-(8'a,9'b,10'a,13'a,14'b,15'b,16'b,17'a)]-