InChI=1S/C19H31N3O9S/c1-2-3-4-5-6-13(23)16(19(30)31)32-10-12(17(27)21-9-15(25)26)22-14(24)8-7-11(20)18(28)29/h3-4,11-13,16,23H,2,5-10,20H2,1H3,(H,21,27)(H,22,24)(H,25,26)(H,28,29)(H,30,31)/b4-3-