Two-Step Iron(0)-Mediated N-Demethylation of N-Methyl Alkaloids
摘要:
A mild and simple two-step Fe(0)-mediated N-demethylation of a number of tertiary N-methyl alkaloids is described. The tertiary N-methylamine is first oxidized to the corresponding N-oxide, which is isolated as the hydrochloride salt. Subsequent treatment of the N-oxide hydrochloride with iron powder readily provides the N-demethylated amine. Representative substrates include a number of opiate and tropane alkaloids. Key intermediates in the synthesis of semisynthetic 14-hydroxy pharmaceutical opiates such as oxycodone and oxymorphone are also readily N-demethylated using this method.
Multi-functional ionic liquid compositions for overcoming polymorphism and imparting improved properties for active pharmaceutical, biological, nutritional, and energetic ingredients
申请人:Rogers D. Robin
公开号:US20070093462A1
公开(公告)日:2007-04-26
Disclosed are ionic liquids and methods of preparing ionic liquid compositions of active pharmaceutical, biological, nutritional, and energetic ingredients. Also disclosed are methods of using the compositions described herein to overcome polymorphism, overcome solubility and delivery problems, to control release rates, add functionality, enhance efficacy (synergy), and improve ease of use and manufacture.
[EN] DUAL FUNCTIONING IONIC LIQUIDS AND SALTS THEREOF<br/>[FR] LIQUIDES IONIQUES À DOUBLE FONCTION ET SELS DE CEUX-CI
申请人:UNIV ALABAMA
公开号:WO2010078300A1
公开(公告)日:2010-07-08
Disclosed herein are ionic liquid compositions comprising active pharmaceutical, biological, and nutritional compounds, and methods of use. Further disclosed are compositions of matter including liquid ion pairs alone or in solution and their use; compositions of ionic liquids that are 'solvated,' for example, 'hydrated' and their uses.
Methods, products and kits are provided for attaching agents to a skin surface via microparticles using endogenous or exogenous transglutaminase.
提供了一种方法、产品和套件,可通过内源或外源性谷氨酰胺转移酶使用微粒子将药剂附着到皮肤表面。
DUAL FUNCTIONING IONIC LIQUIDS AND SALTS THEREOF
申请人:Rogers Robin D.
公开号:US20120046244A1
公开(公告)日:2012-02-23
Disclosed herein are ionic liquid compositions comprising active pharmaceutical, biological, and nutritional compounds, and methods of use. Further disclosed are compositions of matter including liquid ion pairs alone or in solution and their use; compositions of ionic liquids that are ‘solvated,’ for example, ‘hydrated’ and their uses.
Multi-Functional Ionic Liquid Compositions for Overcoming Polymorphism and Imparting Improved Properties for Active Pharmaceutical, Biological, Nutritional, and Energetic Ingredients
申请人:Rogers Robin D.
公开号:US20120264605A1
公开(公告)日:2012-10-18
Disclosed are ionic liquids and methods of preparing ionic liquid compositions of active pharmaceutical, biological, nutritional, and energetic ingredients. Also disclosed are methods of using the compositions described herein to overcome polymorphism, overcome solubility and delivery problems, to control release rates, add functionality, enhance efficacy (synergy), and improve ease of use and manufacture.