Novel Syntheses of Gabapentinvia Addition of Hydrocyanic Acid to Cyclohexylidenemalonate or Cyano(cyclohexylidene)acetate
作者:Gareth Griffiths、Hanspeter Mettler、Lester S. Mills、Felix Previdoli
DOI:10.1002/hlca.19910740208
日期:1991.3.13
Several synthetic pathways to the anticonvulsivum gabapentin (1-(aminomethyl)cyclohexaneacetic acid) have been investigated. Advantages and drawbacks of the different routes are discussed, and the most economical and technically most feasible synthesis is pointed out.
Process for the production of 1-(aminomethyl)cyclohexane acetic acid
申请人:Lonza Ltd.
公开号:US05095148A1
公开(公告)日:1992-03-10
A new process is described for the production of 1-(aminomethyl) cyclohexane acetic acid, a pharmaceutical agent used as an anticonvulsant. For this purpose a (1-cyanocyclohexyl)malonic acid dialkyl ester is decarbalkoxylated to the corresponding (1-cyanocyclohexyl) acetic acid alkyl ester, then transesterified with a benzyl alcohol and finally hydrogenated to form the end product.
Process for cyclic amino acid anticonvulsant compounds
申请人:Warner-Lambert Company
公开号:US05319135A1
公开(公告)日:1994-06-07
An improved process for the preparation of cyclic amino acids by a novel synthesis is described where a dinitrile derivative is converted in two steps to the desired products, as well as valuable intermediates used in the process.
Nitrilase-Catalyzed Selective Hydrolysis of Dinitriles and Green Access to the Cyanocarboxylic Acids of Pharmaceutical Importance
作者:Dunming Zhu、Chandrani Mukherjee、Edward R. Biehl、Ling Hua
DOI:10.1002/adsc.200700067
日期:2007.7.2
further explore its synthetic applications, the nitrilase bll6402 from Bradyrhizobium japonicum strain USDA110 has been examined toward the hydrolysis of various dinitriles. It has been found that nitrilase bll6402 effectively hydrolyzed α,ω-dinitriles to ω-cyanocarboxylic acids, and the selectivity was independent of the substrate chain length. This feature is distinct from all the known nitrilases of