InChI=1S/C16H28O3/c1-2-3-4-5-6-7-9-12-15(17)13-10-8-11-14-16(18)19/h6-7,9,12,15,17H,2-5,8,10-11,13-14H2,1H3,(H,18,19)/b7-6-,12-9?