Using COC(CCBr)OC, Cc1ccc(-c2c[nH]c(=O)[nH]c2=O)c(Cl)n1 to produce COC(CCn1cc(-c2ccc(C)nc2Cl)c(=O)[nH]c1=O)OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.