InChI=1S/C19H22O5/c1-9-7-18-8-10(9)11(20)6-12(18)19-5-3-4-17(2,16(23)24-19)14(19)13(18)15(21)22/h3,5,10-14,20H,1,4,6-8H2,2H3,(H,21,22)