InChI=1S/C27H38O3/c1-20(11-7-8-12-21(2)14-10-16-28)13-9-15-22(3)24-17-25-26(4,5)18-23(29)19-27(25,6)30-24/h7-15,17,23-24,28-29H,16,18-19H2,1-6H3/b8-7+,13-9+,14-10+,20-11+,21-12+,22-15-