Using O=C([O-])[O-], CCOCn1c(S)nc2c1c(=O)n(CCCC[C@@H](C)O)c(=O)n2C to produce CCOCn1c(SC)nc2c1c(=O)n(CCCC[C@@H](C)O)c(=O)n2C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.