Using CNc1ccccc1, O=Cc1ccc(=O)n(Cc2ccc(Cl)cc2)c1 to produce CN(Cc1ccc(=O)n(Cc2ccc(Cl)cc2)c1)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.