1-Azaspiro[4.4]nonane-2,6-dione and the separation and absolute configurations of its enantiomers
作者:Tatsuo Nagasaka、Hiroto Sato、Shin-ichiro Saeki
DOI:10.1016/s0957-4166(96)00509-5
日期:1997.1
Racemic 1-azaspiro[4.4]nonane-2,6-dione 1 was easily synthesized from cyclopentanone in five steps and resolved via chiral acetals into enantiomers. Cephlotaxine (-)-3 and its enantiomer (+)-3 were obtained from (-)-1 and (+)-1, respectively, according to the literature. (C) 1997 Published by Elsevier Science Ltd.
US4046801A
申请人:——
公开号:US4046801A
公开(公告)日:1977-09-06
Tricyclo[4.2.0.01,4]octane
作者:Kenneth B. Wiberg、Larry K. Olli、Nancy Golembeski、Richard D. Adams