SYNTHESIS AND REGIOSELECTIVE SUBSTITUTION OF 6-HALO- AND 6-ALKOXY NICOTINE DERIVATIVES
申请人:North Carolina State University
公开号:EP2007748A2
公开(公告)日:2008-12-31
US7820826B2
申请人:——
公开号:US7820826B2
公开(公告)日:2010-10-26
US8389732B2
申请人:——
公开号:US8389732B2
公开(公告)日:2013-03-05
[EN] SYNTHESIS AND REGIOSELECTIVE SUBSTITUTION OF 6-HALO- AND 6-ALKOXY NICOTINE DERIVATIVES<br/>[FR] SYNTHÈSE ET SUBSTITUTION RÉGIOSÉLECTIVE DE DÉRIVÉS 6-HALO- ET 6-ALCOXY-NICOTINIQUES
申请人:UNIV NORTH CAROLINA STATE
公开号:WO2007126826A2
公开(公告)日:2007-11-08
[EN] The present invention provides active compounds for modulating nicotinic acetylcholine receptors and methods of making the same. The methods of preparing the active compounds utilize different intermediate compounds. [FR] La présente invention concerne des composés actifs destinés à moduler les récepteurs nicotiniques de l'acétylcholine ainsi que leurs procédés de préparation. Les procédés de préparation de ces composés actifs font appel à différents composés intermédiaires.
Synthesis and regioselective substitution of C-6 alkoxy derivatives of (S)-nicotine
作者:Pauline W. Ondachi、Daniel L. Comins
DOI:10.1016/j.tetlet.2007.11.041
日期:2008.1
Enantiopure (S)-6-alkoxynicotine derivatives have been synthesized in two steps from (S)-nicotine via (S)-6-iodonicotine. Deprotonation and substitution at the C-5 position of the pyridine ring of (S)-6-methoxynicotine were achieved using mesityllithium as the base at 0 °C. Conditions for the C-4 lithiation/substitution of (S)-6-isopropoxynicotine and (S)-5-chloro-6-methoxynicotine were also developed