InChI=1S/C20H26O3/c1-12-13-5-6-15-18(2)8-4-9-19(3,17(22)23)14(18)7-10-20(15,11-13)16(12)21/h6,13-14H,1,4-5,7-11H2,2-3H3,(H,22,23)/t13-,14+,18-,19-,20-/m1/s1