InChI=1S/C21H30O3/c1-5-6-7-8-14-11-16(22)19-15-9-13(2)10-17(23)20(15)21(3,4)24-18(19)12-14/h9,11-12,15,17,20,22-23H,5-8,10H2,1-4H3/t15-,17-,20?/m0/s1