InChI=1S/C22H32O4/c1-2-3-9-15-19(23)16-11-8-6-4-5-7-10-13-18-14-12-17-20(24)21(18)22(25)26/h9,11-12,14-17,19,23-24H,2-8,10,13H2,1H3,(H,25,26)/b15-9-,16-11-