Using CCOC(=O)c1ccc(CC#N)cc1, CCCC[Sn](CCCC)(CCCC)N=[N+]=[N-] to produce CCOC(=O)c1ccc(Cc2nnn[nH]2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.