Using O=C(c1ccc2[nH]ccc2c1)N1CCC(Oc2ccc(Cl)cc2)CC1, CC(C)(C)[Si](C)(C)OCCBr to produce CC(C)(C)[Si](C)(C)OCCn1ccc2cc(C(=O)N3CCC(Oc4ccc(Cl)cc4)CC3)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.