InChI=1/C20H17N5O4/c26-18(17-9-8-13-4-1-2-7-16(13)22-17)23-24-19(27)21-14-5-3-6-15(12-14)25-10-11-29-20(25)28/h1-9,12H,10-11H2,(H,23,26)(H2,21,24,27)/f/h21,23-24H B833C60BE7F2FA3A