L-谷氨酸-5-甲酯

tert-butyl (2S)-5-hydroxy-2-(N-(9-(9-phenylfluorenyl))amino)pentanoate

N-Trityl-L-glutaminsaeure-γ-methylester * Diethylamin

(R)-5-hydroxy-2-(2-methoxyacetamido)pentanoic acid

Boc-L-pentahomoserine