Using CCOC(=O)C1CCC(NC(=O)OCC[Si](C)(C)C)C(NC(=O)OCc2ccccc2)C1 to produce CCOC(=O)C1CCC(NC(=O)OCC[Si](C)(C)C)C(N)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.