Using CCCC[SnH](CCCC)CCCC, C#CCCO[Si](C)(C)C(C)(C)C to produce CCCC[Sn](C=CCCO[Si](C)(C)C(C)(C)C)(CCCC)CCCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.