Using COP(C)(=O)OC, CCCC(CC(=O)OCC)O[Si](C)(C)C(C)(C)C to produce CCCC(CC(=O)CP(=O)(OC)OC)O[Si](C)(C)C(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.