Using O=C(Cl)c1ccc(Cl)cc1, CN1CCN(c2cccc3ccc(O)cc23)CC1 to produce CN1CCN(c2cccc3ccc(OC(=O)c4ccc(Cl)cc4)cc23)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.