InChI=1/C19H20N4O2S/c1-25-14-9-7-12(8-10-14)11-15-16(20)23-19(21-17(15)24)26-18(22-23)13-5-3-2-4-6-13/h7-11,13,20H,2-6H2,1H3/b15-11-,20-16? 1A9128A169FAE259