Stereospecific Synthesis of (2 S,4 S)/(2 S,4 R)-4-Fluoroglutamic Acids Base on Natural Chiral Source (4 R)-Hydroxyproline
LI Chun-Lei, WANG Yan-Chao, TAN Ying-Ying, LI Shuo, YANG Zhong-Duo
Chin. J. Org. Chem. . 2010, (12): 1931 -1934 .