Using N#CCC(=O)Nc1ccccc1, CCCC[Sn](CCCC)(CCCC)N=[N+]=[N-] to produce O=C(Cc1nnn[nH]1)Nc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.