InChI=1S/C20H30O3/c1-2-3-4-5-6-10-13-18-19(23-18)16-15-17-12-9-7-8-11-14-20(21)22-17/h6-7,9-10,15-19H,2-5,8,11-14H2,1H3/b9-7-,10-6-,16-15+/t17-,18-,19+/m0/s1