InChI=1S/C21H31N3O10S/c1-21(12-25,15(26)6-4-2-3-5-7-17(28)29)35-11-14(19(32)23-10-18(30)31)24-16(27)9-8-13(22)20(33)34/h2-7,13-15,25-26H,8-12,22H2,1H3,(H,23,32)(H,24,27)(H,28,29)(H,30,31)(H,33,34)/b3-2-,6-4+,7-5+