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