Using CCS(=O)(=O)N1CCC(c2c[nH]c3c(C(N)=O)cc(-c4ccc(CO)s4)cc23)CC1 to produce CCS(=O)(=O)N1CCC(c2c[nH]c3c(C(N)=O)cc(-c4ccc(C=O)s4)cc23)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.