Using COC(=O)COc1ccc(CC(C)NCC(O)c2csc(Cl)n2)cc1 to produce CC(Cc1ccc(OCC(=O)O)cc1)NCC(O)c1csc(Cl)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.