InChI=1S/C22H32O4/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-19(24)22-20(25)16-18(23)17-21(22)26/h7-8,10-11,16-17,23,25-26H,2-6,9,12-15H2,1H3/b8-7-,11-10-