InChI=1/C20H21N3O4/c1-11-8-16(24)12(2)18(25)14(11)10-22-23-20(27)17-15(9-21-19(17)26)13-6-4-3-5-7-13/h3-8,10,15,17,22,25H,9H2,1-2H3,(H,21,26)(H,23,27)/p-1/b14-10+/t15-,17+/m0/s1/fC20H20N3O4/h25h,21,23H/q-1 B84E218FD83A8201