p-Toluenesulfonic acid → 1-Cyclohexyl-6-(3-formyl-1-pyrrolyl)-7-nitro-2,3(1H,4H)-quinoxalinedione

Reaction equation

[NH2:1][C:2]1[CH:11]=[C:10]2[C:5]([NH:6][C:7](=[O:19])[C:8](=[O:18])[N:9]2C2CCCCC2)=[CH:4][C:3]=1[N+:20]([O-:22])=[O:21].[CH:23]([CH:25]1[CH2:29][CH:28](OC)O[CH:26]1OC)=[O:24].[C:34]1(C)[CH:39]=[CH:38][C:37](S(O)(=O)=O)=[CH:36][CH:35]=1>CN(C)C=O.C1(C)C=CC=CC=1>[CH:34]1([N:6]2[C:5]3[C:10](=[CH:11][C:2]([N:1]4[CH:28]=[CH:29][C:25]([CH:23]=[O:24])=[CH:26]4)=[C:3]([N+:20]([O-:22])=[O:21])[CH:4]=3)[NH:9][C:8](=[O:18])[C:7]2=[O:19])[CH2:39][CH2:38][CH2:37][CH2:36][CH2:35]1