Chirospecific Synthesis of (<i>S</i>)-(+)- and (<i>R</i>)-(-)-5-Amino-4-hydroxypentanoic Acid from L- and D-Glutamic Acid via (<i>S</i>)-(+)- and (<i>R</i>)-(-)-5-Hydroxy-2-oxopiperidine
作者:C. Herdeis
DOI:10.1055/s-1986-31506
日期:——
5-Hydroxy-2-oxopiperidine, which we earlier prepared from 5-hydroxy-2-pyridene can now be prepared stereospecifically [(S)-(+)- and (R)-(-)isomers] from L- and D-glutamic acid, respectively, by a five-step sequence. Ring cleavage of (S)-(-)-5-hydroxy-2-oxopiperidine with hot aqueous barium hydroxide affords (S)-(+)-5-amino-4-hydroxypentanoic acid, a homolog of the pharmacologically interesting acid GABOB.
我们之前从5-羟基-2-吡啶制备的5-羟基-2-氧代哌啶,现在可以通过一个五步骤的序列,分别从L-和D-谷氨酸立体选择性地制备成(S)-(+)-和(R)-(-)异构体。用热的氢氧化钡水溶液裂解(S)-(-)-5-羟基-2-氧代哌啶,得到(S)-(+)-5-氨基-4-羟基戊酸,这是具有药理学意义的酸GABOB的同系物。