Using NC1CCN(Cc2ccc(Cl)c(Cl)c2)CC1, CC(=O)c1ccc(OCCC(=O)O)cc1 to produce CC(=O)c1ccc(OCCC(=O)NC2CCN(Cc3ccc(Cl)c(Cl)c3)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.