Using O=C(O)C1(c2ccc(Br)cc2)CCC1, [N-]=[N+]=NP(=O)(c1ccccc1)c1ccccc1 to produce NC1(c2ccc(Br)cc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.