論文

査読有り 筆頭著者
2017年1月

PREPARATION OF (R)-3-HYDROXY-N-METHYLPIPERIDINE, A SYNTHETIC KEY INTERMEDIATE OF (R)-MEPENZOLATE, BASED ON THE LIPASE-CATALYZED RESOLUTION OF THE RACEMIC FORM

HETEROCYCLES
  • Yasunobu Yamashita
  • ,
  • Kengo Hanaya
  • ,
  • Mitsuru Shoji
  • ,
  • Takeshi Sugai

95
1
開始ページ
370
終了ページ
379
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.3987/COM-16-S(S)28
出版者・発行元
PERGAMON-ELSEVIER SCIENCE LTD

In this study, a two-step method for the gram-scale synthesis of (R)-3-hydroxy-N-methylpiperidine in 97.8% enantiomeric excess (ee) is reported. The key chiral synthetic intermediate of (R)-mepenzolate was formed in 22% yield over two steps using a commercially available and inexpensive racemic alcohol as the starting material. In the first step, Candida antarctica lipase B-catalyzed kinetic resolution of the racemic alcohol under acetylation conditions was performed to obtain the acetate form of the (R)-enantiomer in 82.1% ee (E 18). The second step involved enantio-enrichment using the same lipase to catalyze deacetylation. The ee of the product (R)-alcohol was further enriched to 97.8%.

リンク情報
DOI
https://doi.org/10.3987/COM-16-S(S)28
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000405885400030&DestApp=WOS_CPL
ID情報
  • DOI : 10.3987/COM-16-S(S)28
  • ISSN : 0385-5414
  • eISSN : 1881-0942
  • Web of Science ID : WOS:000405885400030

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