InChI=1S/C20H28O3/c1-20-10-13(11-23-2)19-15-6-4-14(21)9-12(15)3-5-16(19)17(20)7-8-18(20)22/h4,6,9,13,16-19,21-22H,3,5,7-8,10-11H2,1-2H3/t13-,16+,17+,18+,19-,20+/m1/s1