Using C=C(NC(=O)OCc1ccccc1)C(=O)OC, CC(C)(C)[Si](C)(C)O[C@@H]1CCCC[C@H]1Br to produce COC(=O)C(C[C@@H]1CCCC[C@H]1O[Si](C)(C)C(C)(C)C)NC(=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.