Using O=C(Cc1ccc(OCc2ccccc2)cc1)Nc1cccc2c1cnn2CCN1CCCC1 to produce O=C(Cc1ccc(O)cc1)Nc1cccc2c1cnn2CCN1CCCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.