Using O=C(O)c1c[nH]c(-c2ccc(Br)cc2F)n1, CC(N)=NNC(C)C to produce CC(=NC(=O)c1c[nH]c(-c2ccc(Br)cc2F)n1)NNC(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.