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