Using c1ccc(C2CCNCC2)cc1, O=CCN1C(=O)COc2ccccc21 to produce O=C1COc2ccccc2N1CCN1CCC(c2ccccc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.