会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 31. 发明专利
    • FR2677981A1
    • 1992-12-24
    • FR9107518
    • 1991-06-19
    • PANMEDICA
    • CLAUDE LARUELLEMARCEL LEPANT
    • C07C35/08C07C45/59C07C49/403C07C227/32C07D207/28
    • Process for the preparation of pure isomeric forms of 3,3,5-trimethyl cyclohexanol amino acid esters and process for the preparation of different pure isomeric forms of 3,3,5-trimethyl cyclohexanone, an intermediate product for the preparation of said esters. The process for the preparation of pure isomeric forms of 3,3,5-trimethyl cyclohexanol amino acid esters is characterized in that: (1) a 3,3,5-trimethyl cyclohexanol alcohol having a previously selected asymmetric carbon configuration (C1 and C5), is prepared by reduction from a pure isomeric trimethyl cyclohexanone, and (2) a suitable isomeric form of an amino acid is reacted with 3,3,5-trimethyl cyclohexanol alcohol of preselected configuration, obtained in (1), in a new stoichiometric ratio by weight and at a temperature sufficient to eliminate the water formed, without causing the ester obtained to be racemized. For use in the correction of dislipidemias.