InChI=1S/C25H34O4/c1-18(12-13-22-20(3)11-8-15-25(22,5)6)9-7-10-19(2)14-16-29-23(26)17-21(4)24(27)28/h7,9-10,12-14H,4,8,11,15-17H2,1-3,5-6H3,(H,27,28)/b10-7?,13-12+,18-9?,19-14?