InChI=1S/C30H31NO17S/c31-1-2-49-27-19-15(36)5-10(32)6-17(19)45-24(11-7-13(34)14(35)8-12(11)33)26(27)47-29(44)9-3-16(37)20(38)18(4-9)46-30-23(41)21(39)22(40)25(48-30)28(42)43/h3-8,21-27,30,32-41H,1-2,31H2,(H,42,43)