InChI=1/C20H20N6O5/c27-20-19(22-21-16-9-8-14(25(28)29)12-18(16)26(30)31)15-6-2-3-7-17(15)24(20)13-23-10-4-1-5-11-23/h2-3,6-9,12,21H,1,4-5,10-11,13H2/p+1/b22-19+/fC20H21N6O5/h23H/q+1 B92A28AC18FEB993