Benzyl (2R,5E)-2-(bis{[(2-methyl-2-propanyl)oxy]carbonyl}amino)-6 -nitro-5-hexenoate

2,3-二氟苯硼酸

二碳酸二叔丁酯

1-Benzyl 5-methyl N,N-bis{[(2-methyl-2-propanyl)oxy]carbonyl}-D-g lutamate

Benzyl N,N-bis{[(2-methyl-2-propanyl)oxy]carbonyl}-5-oxo-D-norval inate