Using CN(C(=O)CCN1Cc2cc(C(=O)c3ccccc3)ccc2N=C1N)C1CCCCC1 to produce CN(C(=O)CCN1Cc2cc(C(O)c3ccccc3)ccc2N=C1N)C1CCCCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.