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