Using O=C(O)C1CCc2ccccc2C1, NC1CCN(CCC2CCOc3ccccc32)CC1 to produce O=C(NC1CCN(CCC2CCOc3ccccc32)CC1)C1CCc2ccccc2C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.