Asymmetric Synthesis. 32. A New Access to Enantiomerically Pure (S)-(-)-Pipecolic Acid and 2- or 6-Alkylated Derivatives
摘要:
Enantiomerically pure (S)-(-)-pipecolic acid (5) was synthesized in four steps and 47% overall yield starting from 2-cyano-6-phenyloxazolopiperidine (1). A general strategy is described for preparing 2-alkylated and 6-alkylated pipecolic acid 7a-c and 11a-c using diastereoselective procedures.
Discovery and Biocatalytic Application of a PLP-Dependent Amino Acid γ-Substitution Enzyme That Catalyzes C–C Bond Formation
作者:Mengbin Chen、Chun-Ting Liu、Yi Tang
DOI:10.1021/jacs.0c03535
日期:2020.6.10
Pyridoxal phosphate (PLP)-dependent enzymes can catalyze transformations of L-amino acids at α, β and γ positions. These enzymes are frequently involved in the biosynthesis of nonproteinogenic amino acids as building blocks of natural products, and are attractive biocatalysts. Here, we report the discovery of a two-step enzymatic synthesis of (2S, 6S)-6-methyl pipecolate 1, from the biosynthetic pathway
Asymmetric Synthesis. 32. A New Access to Enantiomerically Pure (S)-(-)-Pipecolic Acid and 2- or 6-Alkylated Derivatives
作者:J.-F. Berrien、J. Royer、H.-P. Husson
DOI:10.1021/jo00093a007
日期:1994.7
Enantiomerically pure (S)-(-)-pipecolic acid (5) was synthesized in four steps and 47% overall yield starting from 2-cyano-6-phenyloxazolopiperidine (1). A general strategy is described for preparing 2-alkylated and 6-alkylated pipecolic acid 7a-c and 11a-c using diastereoselective procedures.