Using C#C[Sn](CCCC)(CCCC)CCCC, O/N=C/c1ccc2cnccc2c1 to produce CCCC[Sn](CCCC)(CCCC)c1cc(-c2ccc3cnccc3c2)no1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.