Using CCCC[Sn](Cl)(CCCC)CCCC, CC(C)(C)[Si](C)(C)OCc1nccs1 to produce CCCC[Sn](CCCC)(CCCC)c1cnc(CO[Si](C)(C)C(C)(C)C)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.