InChI=1/C21H23ClN4O4/c1-25(2)13-3-12-23-21(28)19(14-15-4-8-17(22)9-5-15)24-20(27)16-6-10-18(11-7-16)26(29)30/h4-11,14H,3,12-13H2,1-2H3,(H,23,28)(H,24,27)/p+1/b19-14+/fC21H24ClN4O4/h23-25H/q+1 351B87DD6227E81D