Using O=C1CCc2cc(Nc3ncnc4c3CCC4)ccc21, O=CC1CCN(Cc2ccccc2)CC1 to produce O=C1C(=CC2CCN(Cc3ccccc3)CC2)Cc2cc(Nc3ncnc4c3CCC4)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.