InChI=1S/C18H30O3/c1-2-3-4-5-6-7-8-9-10-13-16-17(21-16)14-11-12-15-18(19)20/h6-7,9-10,16-17H,2-5,8,11-15H2,1H3,(H,19,20)/b7-6-,10-9-