Using C[Si](C)(C)C1SCCCS1, C[C@@H]1CC(=O)C[C@H](C)C1 to produce C[C@@H]1CC(=C2SCCCS2)C[C@H](C)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.