InChI=1S/C21H23NO10/c22-14(19(26)27)9-10-1-3-11(4-2-10)30-12-5-7-13(8-6-12)31-21-17(25)15(23)16(24)18(32-21)20(28)29/h1-8,14-18,21,23-25H,9,22H2,(H,26,27)(H,28,29)