InChI=1/C16H17N5O3S/c1-8-14(9(2)21(3)20-8)18-15(22)19-16-17-10-6-11-12(7-13(10)25-16)24-5-4-23-11/h6-7H,4-5H2,1-3H3,(H2,17,18,19,22)/f/h18-19H 4A2FF39E3F647E53