Using CC(C)(O)C1CN(C(=O)OCc2ccccc2)CCN1C(=O)OCc1ccccc1 to produce CC1(C)OC(=O)N2CCN(C(=O)OCc3ccccc3)CC21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.