InChI=1/C20H22N4O7/c1-3-22(4-2)9-10-31-20(26)14-5-7-16(8-6-14)21-19(25)15-11-17(23(27)28)13-18(12-15)24(29)30/h5-8,11-13H,3-4,9-10H2,1-2H3,(H,21,25)/p+1/fC20H23N4O7/h21-22H/q+1 7F712AF10418CD20