Using O=C([O-])[O-], COC(=O)[C@@H]1CSC(C)c2c(O)cc(OC)c(C)c2C(=O)O[C@H](OC(C)=O)CCC(=S)N1 to produce COC(=O)[C@@H]1CSCc2c(O)cc(OC)c(C)c2C(=O)O[C@H](CO)CCC(=S)N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.