InChI=1S/C23H32O2/c1-16(2)9-7-10-17(3)11-8-12-18(4)13-14-21-15-22(24)19(5)20(6)23(21)25/h9,11,13,15H,7-8,10,12,14H2,1-6H3/b17-11+,18-13-