InChI=1S/C18H32O3/c1-2-3-4-5-6-7-8-9-11-16(19)14-15-17-12-10-13-18(20)21-17/h9,11,16-17,19H,2-8,10,12-15H2,1H3/b11-9-/t16-,17-/m0/s1