Using CCc1oc2ccccc2c1C(=O)N(C)Cc1ccc2c(Br)c(O)ccc2c1, N#CCBr to produce CCc1oc2ccccc2c1C(=O)N(C)Cc1ccc2c(Br)c(OCC#N)ccc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.