Using C[C@H](NC(=O)c1ccc2c(c1)nc(Nc1nc3ccc(OC(F)(F)F)cc3s1)n2C)C(=O)O, CNC to produce C[C@H](NC(=O)c1ccc2c(c1)nc(Nc1nc3ccc(OC(F)(F)F)cc3s1)n2C)C(=O)N(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.