Using CCCC[Sn](/C=C\OCC)(CCCC)CCCC, Cc1cccc(Cn2nc(C)c3c(NC(=O)c4cnc5cc(Br)ccn45)cccc32)n1 to produce CCO/C=C\c1ccn2c(C(=O)Nc3cccc4c3c(C)nn4Cc3cccc(C)n3)cnc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.