A new catalytic amination of aromatic olefins with anilines is presented. In a domino reaction, substituted quinoline derivatives are obtained in the presence of cationic rhodium complexes, such as [Rh(cod)2]BF4, and PPh3. Ethylbenzene is formed as a by-product in this new oxidative reaction. The first transition metal catalyzed anti-Markovnikov hydroamination of styrene with anilines occurs as a side
selective methods, but the re- action conditions are somewhat harsh, as strong reducing reagents must be used. Nowadays, the formation of C-N bonds via cross- coupling reactions is an essential methodology for the preparation of nitrogen-containing compounds. Recently, different transition-metal-promoted reactions have been developed for the synthesis of secondary amines: catalytic systems for N-alkylation
介绍了一种简单的铜促进的苯胺 N-单烷基化,它利用烷基硼酸作为烷基化伙伴。该反应在回流的二恶烷中进行,它允许在一个步骤中对许多结构和电子不同的苯胺进行官能化。进行了广泛的研究以证明这种新方法在制备苯乙基苯胺方面的实用性。芳香胺是生物活性化合物,广泛存在于制药和农业化学工业中。1 因此,开发新的合成方法仍然是一个活跃的研究领域。特别吸引人的是广泛使用的初级苯胺转化为相应的次级苯胺。直接烷基化通常通过在碱存在下与烷基卤或类似试剂反应来完成。这似乎是一个简单的转化,但在许多情况下,由于过度烷基化,伯苯胺的有效 N-单烷基化是不可能的,这会提供叔苯胺或季铵盐作为副产物。其他制备单烷基化苯胺的方法基于使用允许引入单个烷基的临时保护基团(例如氨基甲酸酯、苄基),然后去除保护基团(引入两个额外的步骤)过程)。然而,由于它们的毒性,必须避免使用许多烷化剂,尤其是在 API 和活性化合物合成的最后一步。羰基
THERAPEUTIC FLUOROETHYL UREAS
申请人:ALLERGAN, INC.
公开号:EP2018364A1
公开(公告)日:2009-01-28
[EN] THERAPEUTIC FLUOROETHYL UREAS<br/>[FR] URÉES DE FLUOROÉTHYLE THÉRAPEUTIQUES
申请人:ALLERGAN INC
公开号:WO2007137029A1
公开(公告)日:2007-11-29
[EN] Compounds of the formula (I) or a pharmaceutically acceptable salt thereof or a tautomer thereof, wherein A and B are as described herein, are useful for treating conditions afflicting mammals. [FR] La présente invention concerne des composés de formule (I) ou un sel pharmaceutiquement acceptable ou un tautomère de celui-ci, dans laquelle A et B sont tels que décrits dans la description, utiles pour traiter des conditions pathologiques dont souffrent des mammifères.
[EN] NOVEL MELATONERGIC LIGANDS AND USES THEREOF<br/>[FR] NOUVEAUX LIGANDS MÉLATONINERGIQUES ET LEURS UTILISATIONS
申请人:[en]GOBBI, Gabriella
公开号:WO2022259219A1
公开(公告)日:2022-12-15
The present invention relates to novel melatonin ligands capable of modulating the melatonin receptors, particularly the melatonin receptor subtype MT2. Moreover, these compounds have been shown to be effective in the treatment of diseases and disorders associated with MT2 activity such as sleep disorders, major depression disorder, mood disorders, anxiety disorders, autism spectrum disorder, cognitive disorders, dementia,metabolic diseases included diabetes Type 1 and type 2, circadian rhythms disorders, pain, acute pain, inflammatory pain, chronic pain, neuropathic pain.