InChI=1S/C25H31NO7S/c1-26(33-23(24(30)31)21(28)20(27)22(29)25(33)32)11-8-15(9-12-26)19-16-5-3-2-4-14(16)6-7-18-17(19)10-13-34-18/h2-5,10,13,20-23,25,27-29,32H,6-9,11-12H2,1H3,(H,30,31)/t20-,21-,22+,23-,25?/m0/s1