17-hydroxy-17-methyl-5,9-cyclo-9,10-secoandrosta-1(10),3-dien-2-one 5,9-cyclo-9,10-secoandrosta-1(10),3-dien-2-one, 17-hydroxy-17-methyl- InChI=1/C20H28O2/c1-13-12-14(21)4-10-20(13)11-5-15-16-7-9-19(3,22)18(16,2)8-6-17(15)20/h4,10,12,15-17,22H,5-9,11H2,1-3H