Using COC(=O)c1ccc(OCC2CC(=O)N(c3ccc(NC(C)=O)cc3)C2)cc1 to produce COC(=O)c1ccc(OCC2CC(=O)N(c3ccc(N)cc3)C2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.