Using C[C@H]1Oc2nc(-c3ccc(C4(NC(=O)OC(C)(C)C)CCC4)cc3)c(-c3ccccc3)cc2NC1=O, N#CCBr to produce CC1Oc2nc(-c3ccc(C4(NC(=O)OC(C)(C)C)CCC4)cc3)c(-c3ccccc3)cc2N(CC#N)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.