for the following products
N-alpha-Boc-N-gamma-Z-D-2,4-diaminobutyric acid dicyclohexylamine salt | N-alpha-tert-Butyloxycarbonyl-n-gamma-benzyloxycarbonyl-D-2,4-diaminobutyric acid dicyclohexylamine | N-Cyclohexylcyclohexanamine (2R)-2-[(2-methylpropan-2-yl)oxycarbonylamino]-4-(phenylmethoxycarbonylamino)butanoic acid and Boc-D-Dab(Z)-OH.DCHA
