Using O=C(CCl)Nc1cc(C(F)(F)F)ccc1Br, CCOC(=O)Cc1n[nH]c(=O)c2ccccc12 to produce CCOC(=O)Cc1nn(CC(=O)Nc2cc(C(F)(F)F)ccc2Br)c(=O)c2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.