Using CNC, CC(C)(C)OC(=O)NC(CCOS(C)(=O)=O)c1ccc(Cl)cc1 to produce CN(C)CCC(NC(=O)OC(C)(C)C)c1ccc(Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.