Using N#Cc1ccn2ncc(-c3ncc4[nH]c(=O)n(C5CCOCC5)c4n3)c2c1, CC(C)(C)[Si](C)(C)OCCBr to produce CC(C)(C)[Si](C)(C)OCCn1c(=O)n(C2CCOCC2)c2nc(-c3cnn4ccc(C#N)cc34)ncc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.