Using C=CC[C@H](NC(=O)[C@@H](C)CCCC)C(=O)O, CI to produce C=CC[C@@H](C(=O)O)N(C)C(=O)[C@H](C)CCCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.