发明名称 RACEMISATION AND DISSYMMETRICAL TRANSFORMATION PROCESSES USED IN OBTAINING LEVOBUPIVACAINE AND ITS ANALOQUES
摘要 PCT No. PCT/GB95/02247 Sec. 371 Date May 30, 1997 Sec. 102(e) Date May 30, 1997 PCT Filed Sep. 22, 1995 PCT Pub. No. WO96/09290 PCT Pub. Date Mar. 28, 1996A process for the racemisation of an optically-enriched piperidine-2-carboxanilide compound, comprises heating the compound in the presence of an alkanoic or arylalkanoic acid. A process for the asymmetric transformation of such a compound comprises heating the compound in the presence of an acid as defined above, a chiral acid resolving agent and an inert cosolvent.
申请公布号 PL183204(B1) 申请公布日期 2002.06.28
申请号 PL19950319368 申请日期 1995.09.22
申请人 DARWIN DISCOVERY LTD. 发明人 DYER ULRICH C.;LOCK CHRISTOPHER J.;WOODS MARTIN
分类号 C07B53/00;C07B55/00;C07B57/00;C07D211/60 主分类号 C07B53/00
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