InChI=1S/C22H32O4/c1-2-3-4-9-15-19-20(26-19)16-10-7-5-6-8-12-17-13-11-14-18(23)21(17)22(24)25/h4,9,11,13-14,19-20,23H,2-3,5-8,10,12,15-16H2,1H3,(H,24,25)/b9-4-