InChI=1S/C21H30O3/c1-5-6-7-8-14-11-16(22)19-17(12-14)24-20-18(19)15(13(2)3)9-10-21(20,4)23/h11-12,15,18,20,22-23H,2,5-10H2,1,3-4H3/t15-,18+,20-,21-/m0/s1