Using CC(C)(C)OC(=O)N1CC(O)CN1C(=O)OCc1ccccc1, CC(C)(C)C(=O)Cl to produce CC(C)(C)OC(=O)N1CC(OC(=O)C(C)(C)C)CN1C(=O)OCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.