Using CN(C)C1CCN(c2ccc3[nH]c(C(=O)c4ccnc(Br)c4)nc3c2)CC1, C[Si](C)(C)CCOCCl to produce CN(C)C1CCN(c2ccc3c(c2)nc(C(=O)c2ccnc(Br)c2)n3COCC[Si](C)(C)C)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.