Using CCOC(=O)CBr, COc1ccc(N)c(N[C@@H](COCc2ccccc2)CO[Si](C)(C)C(C)(C)C)n1 to produce CCOC(=O)CNc1ccc(OC)nc1N[C@@H](COCc1ccccc1)CO[Si](C)(C)C(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.