Using C#C[C@]1(C)CCc2c(C)c(O)c(C)c(C)c2O1, COS(=O)(=O)OC to produce C#C[C@]1(C)CCc2c(C)c(OC)c(C)c(C)c2O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.