Ac-DMQD-AMC is an inhibitor of caspase-3. Ac-DMQD-AMC is an aromatic amine using aminium-based coupling reagent HATU in the presence of 2,4,6-trimethylpyridine (TMP)[1].
[1] Przemysaw Reszka, et al. Control of aspartate epimerization during the coupling of caspase specific tetrapeptides with aromatic amines by using N-[[(dimethylamino)-1H-1,2,3-triazolo[4,5-b]-pyridin-1-yl]methylene]-N-methylmethanaminium hexafluorophosphate N-oxide (HATU) as a coupling reagent. Tetrahedron: Asymmetry. 2008, 19, 1.