InChI=1S/C18H19N5O4S/c1-19-12-8-22(9-13(12)27-2)14-4-3-10-15(24)11(17(25)26)7-23(16(10)21-14)18-20-5-6-28-18/h3-7,12-13,19H,8-9H2,1-2H3,(H,25,26)/t12-,13-/m0/s1