Ethanol → 5-Ethyl-2-(2-nitroanilino)thiophene-3-carboxylic acid

Reaction equation

[CH2:1]([CH3:2])[c:3]1[cH:4][c:5]([C:18](=[O:19])[O:20][CH2:21][CH3:22])[c:6]([NH:8][c:9]2[c:10]([N+:15](=[O:16])[O-:17])[cH:11][cH:12][cH:13][cH:14]2)[s:7]1.[CH3:25][CH2:26][OH:27].[Na+:24].[OH-:23].[OH2:28]>>[CH2:1]([CH3:2])[c:3]1[cH:4][c:5]([C:18](=[O:19])[OH:20])[c:6]([NH:8][c:9]2[c:10]([N+:15](=[O:16])[O-:17])[cH:11][cH:12][cH:13][cH:14]2)[s:7]1