Using NCCc1ccc(Cl)cc1, Cn1c2c(ccc1=O)C(=O)CCC2 to produce Cn1c2c(ccc1=O)C(NCCc1ccc(Cl)cc1)CCC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.