Using CN1CCN(c2nn(C3CCCCO3)c3cnc(-c4cccnc4)cc23)C1=O to produce CN1CCN(c2n[nH]c3cnc(-c4cccnc4)cc23)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.