Using CCOC(=O)COCCN1CCN2c3ccccc3Cc3ccccc3[C@H]2C1 to produce O=C(O)COCCN1CCN2c3ccccc3Cc3ccccc3[C@H]2C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.