InChI=1S/C21H26O3/c1-4-21(23)12-10-17-15-5-6-16-13(7-8-18(22)19(16)24-3)14(15)9-11-20(17,21)2/h1,7-8,14-15,17,22-23H,5-6,9-12H2,2-3H3/t14-,15-,17+,20+,21+/m1/s1