InChI=1S/C18H30O3/c1-2-3-10-13-16-17(21-16)14-11-8-6-4-5-7-9-12-15-18(19)20/h3,8,10-11,16-17H,2,4-7,9,12-15H2,1H3,(H,19,20)/b10-3-,11-8-