Using [N-]=[N+]=[N-], Cc1[nH]c(C(=O)OC2CCN(c3cc(C#N)cc(Cl)n3)CC2)c(Cl)c1Cl to produce Cc1[nH]c(C(=O)OC2CCN(c3cc(-c4nnn[nH]4)cc(Cl)n3)CC2)c(Cl)c1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.