InChI=1S/C17H17ClN4O/c1-22-13-8-10(18)2-3-11(13)14-12(9-19)17(4-6-20-7-5-17)21-16(23)15(14)22/h2-3,8,12,20H,4-7H2,1H3,(H,21,23)/t12-/m1/s1