1989 Volume 37 Issue 9 Pages 2570-2572
Cyclohexylnorstatine [(2R, 3S)-3-amino-4-cyclohexyl-2-hydroxybutyric acid] (1) and allocyclohexylnorstatine [(2S, 3S)-3-amino-4-cyclohexyl-2-hydroxybutyric acid] (2), designed as key amino acids in renin inhibitors, were synthesized diastereoselectively and simply from Boc-L-phenylalaninol.