(R)-2-Methyl-1-tosylaziridine-D7 is deuterium labeled (R)-2-Methyl-1-tosylaziridine (M331365), whichcan be used to synthesize tetrahydropyridines, morpholines, chiral β-and γ-amino ethers, and (ent)-korupensamine D. Korupensamine D is a natural product that exhibits antimalarial properties.