Using O=C1C(=O)N(CC(=O)N2CCN(N=Cc3ccccc3)CC2)c2cc(Cl)ccc21, NO to produce NN1CCN(C(=O)CN2C(=O)C(=NO)c3ccc(Cl)cc32)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.