InChI=1S/C22H30O4/c1-15(2)7-5-8-16(3)9-6-10-17(4)11-12-18-13-19(22(25)26)14-20(23)21(18)24/h7,9,11,13-14,23-24H,5-6,8,10,12H2,1-4H3,(H,25,26)/b16-9-,17-11+