Using COC(=O)c1cccc(NC(=O)c2ccc3ccc(N)cc3c2)c1 to produce Nc1ccc2ccc(C(=O)Nc3cccc(C(=O)O)c3)cc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.