InChI=1S/C22H25NO10S/c1-32-11-8-6-10(7-9-11)19(17(27)21(28)29)34-13-5-3-2-4-12(13)23-20-16(26)14(24)15(25)18(33-20)22(30)31/h2-9,14-20,23-27H,1H3,(H,28,29)(H,30,31)