Using CC(=O)ON=C1CCCN(C(=O)c2ccc(NC(=O)c3ccccc3Cl)cc2)c2ccccc21 to produce NC1CCCN(C(=O)c2ccc(NC(=O)c3ccccc3Cl)cc2)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.