Using C[Si](C)(C)CCOCn1cc(I)c2c(Cl)nc(Cl)nc21, CC(C)O to produce CC(C)Oc1nc(Cl)nc2c1c(I)cn2COCC[Si](C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.