Using O=C(O)CC1COc2cc(Cl)ccc2N1C(=O)c1ccc2c(c1)NC(=O)CO2, CN to produce CNC(=O)CC1COc2cc(Cl)ccc2N1C(=O)c1ccc2c(c1)NC(=O)CO2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.