(S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(1-(tert-butoxycarbonyl)piperidin-4-yl)propanoic acid

for the following products (S)-1-Boc-alpha-(Fmoc-Amino)-4-piperidinepropanoic acid | Fmoc-L-Ala(N-Boc-piperidin-4-yl)-OH | N-alpha-Fmoc-beta-(1-Boc-piperidin-4-yl)-DL-alanine and (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(1-(tert-butoxycarbonyl)piperidin-4-yl)propanoic acid