InChI=1/C19H18N4O3/c24-19(15-5-2-1-3-6-15)16-7-8-17(18(13-16)23(25)26)21-9-4-11-22-12-10-20-14-22/h1-3,5-8,10,12-14,21H,4,9,11H2/p+1/fC19H19N4O3/h20H/q+1 8E86CE9BA3C51D95