Using NC1CCN(Cc2ccc(Cl)c(Cl)c2)CC1, COC(=O)CCC(=O)Cl to produce COC(=O)CCC(=O)NC1CCN(Cc2ccc(Cl)c(Cl)c2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.