InChI=1S/C27H41N3O9S/c1-2-3-4-5-6-7-8-11-19(32)12-9-10-13-22(33)23(17-31)40-18-21(26(37)29-16-25(35)36)30-24(34)15-14-20(28)27(38)39/h8,11,19-23,31-33H,2-7,14-18,28H2,1H3,(H,29,37)(H,30,34)(H,35,36)(H,38,39)/b11-8-