Using C[C@H](N)Cn1cc(NC(=O)c2cnn3cccnc23)c(-c2cc(Cl)ccc2OC(F)F)n1, CC=O to produce CCN[C@@H](C)Cn1cc(NC(=O)c2cnn3cccnc23)c(-c2cc(Cl)ccc2OC(F)F)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.