Using N#Cc1ccccc1Cn1c(N2CCC[C@@H](N)C2)ncc(Br)c1=O, CC#C[Sn](CCCC)(CCCC)CCCC to produce CC#Cc1cnc(N2CCC[C@@H](N)C2)n(Cc2ccccc2C#N)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.