InChI=1S/C19H22O6/c1-7-5-18-6-8(7)3-4-9(18)19-12(10(18)15(21)22)17(2,16(23)25-19)14-11(24-14)13(19)20/h8-14,20H,1,3-6H2,2H3,(H,21,22)