Using CC(C)NC(C)C, CC(C)(C)[Si](C)(C)OC1CCC(C(=O)O)CC1 to produce CC1(C(=O)O)CCC(O[Si](C)(C)C(C)(C)C)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.