Using COC(=O)CSc1ccc2c(c1)C(C1CCN(C)CC1)c1sccc1CO2 to produce CN1CCC(=C2c3cc(SCC(=O)O)ccc3OCc3ccsc32)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.