InChI=1/C20H21N5O4/c26-19(21-16-6-2-4-8-18(16)25(28)29)13-23-11-9-14(10-12-23)24-17-7-3-1-5-15(17)22-20(24)27/h1-8,14H,9-13H2,(H,21,26)(H,22,27)/p+1/fC20H22N5O4/h22-23,26H/q+1 B7FAE401B6D1CFDE