InChI=1/C19H15N5O3/c1-19(26,12-4-6-14(25)7-5-12)9-8-13-11-24-18(16(20)21-13)22-17(23-24)15-3-2-10-27-15/h2-7,10-11,25-26H,1H3,(H2,20,21)/t19-/m1/s1/f/h20H2 20C57280CAACACE3