InChI=1/C16H18N4O3/c21-14-13(18-11-4-1-2-5-12(11)19-14)8-20-7-3-6-16(10-20)9-17-15(22)23-16/h1-2,4-5H,3,6-10H2,(H,17,22)(H,19,21)/p+1/t16-/m1/s1/fC16H19N4O3/h17,19-20H/q+1 1220DF3B112B0413