Using OB(O)c1ccc(C(F)(F)F)cc1, C=CCCn1ccc2c(=O)[nH]c(Cl)nc21 to produce C=CCCn1ccc2c(=O)[nH]c(-c3ccc(C(F)(F)F)cc3)nc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.