Using COC(=O)CC(=O)OC, CCOC(=O)[C@H](CCI)O[Si](CC)(CC)CC to produce CCOC(=O)[C@H](CCC(C(=O)OC)C(=O)OC)O[Si](CC)(CC)CC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.