InChI=1S/C19H22O6/c1-8-6-18-7-9(8)10(20)5-11(18)19-4-3-12(21)17(2,16(24)25-19)14(19)13(18)15(22)23/h3-4,9-14,20-21H,1,5-7H2,2H3,(H,22,23)