InChI=1S/C22H36O3/c1-4-5-12-15-20-18(2)19(3)21(25-20)16-13-10-8-6-7-9-11-14-17-22(23)24/h12,15H,4-11,13-14,16-17H2,1-3H3,(H,23,24)/b15-12+