Using COC(=O)C(C)CN1CCN(Cc2ccc(Cl)c(Cl)c2)CC1 to produce CC(CN1CCN(Cc2ccc(Cl)c(Cl)c2)CC1)C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.