Using CC(C)[C@H](NC(=O)OCc1ccccc1)C(=O)Oc1cccc(C(=O)O)c1, ClCI to produce CC(C)[C@H](NC(=O)OCc1ccccc1)C(=O)Oc1cccc(C(=O)OCCl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.