Using C[Si](C)(C)CCOCn1ncc(B(O)O)c1C=O, CC1(C)NC(=O)c2sc(Br)cc2N1 to produce CC1(C)NC(=O)c2sc(-c3cnn(COCC[Si](C)(C)C)c3C=O)cc2N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.