Using O=N[O-], CCN1c2ncc(CCc3ccnc(N)c3)cc2C(=O)N(C)c2ccc(Cl)nc21 to produce CCN1c2ncc(CCc3ccnc(O)c3)cc2C(=O)N(C)c2ccc(Cl)nc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.