InChI=1S/C20H28O3/c1-20-9-8-13-14(16(20)6-7-19(20)21)5-4-12-10-17(22-2)18(23-3)11-15(12)13/h10-11,13-14,16,19,21H,4-9H2,1-3H3/t13-,14+,16-,19-,20-/m0/s1