InChI=1S/C21H26O3/c1-4-21(23)19(24-3)12-18-17-7-5-13-11-14(22)6-8-15(13)16(17)9-10-20(18,21)2/h1,6,8,11,16-19,22-23H,5,7,9-10,12H2,2-3H3/t16-,17-,18+,19-,20+,21+/m1/s1