Boc-S-苄基-L-半光氨酸 、
N-Boc-O-苄基-D-丝氨酸 、
(R)-4-methylnaphthalene-1-sulfonic acid [2-benzyloxy-1-(2-dimethylaminoethylcarbamoyl)ethyl]amide 以Finally, 3.8 mg (1% overall yield) of the title compound的产率得到(S)-4-methylnaphthalene-1-sulfonic acid {2-benzyloxy-1-[(2-dimethylaminoethylamino)methyl]ethyl}amide