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