Boc-Glu(OCH3)-OtBu

(S)‐1‐tert‐butyl 5‐methyl 2‐((diphenylmethylene)amino)pentanedioate

甘氨酰赖氨酸

H-Lys(Mtr)-OH

N,N -二芴甲氧羰基-D-赖氨酸