InChI=1/C16H17N3O2S/c1-10-4-3-5-11(2)15(10)18-16(22)19-17-9-12-6-7-13(20)8-14(12)21/h3-9,20-21H,1-2H3,(H2,18,19,22)/b17-9+/f/h18-19H 6D7B5D7C69EA74D7