InChI=1S/C21H32O4/c1-14-6-7-17-19(3,4)18(24-15(2)23)9-11-20(17,5)21(14)12-8-16(25-21)10-13-22/h10,13-14,17-18H,6-9,11-12H2,1-5H3/b16-10-/t14-,17+,18+,20+,21-/m0/s1