for the following products
(S)-3-(Boc-amino)-4-phenylbutyric acid | (S)-3-(Boc-Amino)-4-phenylbutyric acid | (S)-3-(Boc-amino)-4-phenylbutyric acid | Boc-L-beta-HPhe-OH | N-beta-(tert-Butyloxycarbonyl)-L-homophenylalanine and Boc-L-beta-Homophenylalanine
