Simple and Clean Photoinduced Aromatic Trifluoromethylation Reaction
作者:Lu Li、Xiaoyue Mu、Wenbo Liu、Yichen Wang、Zetian Mi、Chao-Jun Li
DOI:10.1021/jacs.6b02782
日期:2016.5.11
We describe a simple, metal- and oxidant-free photochemical strategy for the direct trifluoromethylation of unactivated arenes and heteroarenes under either ultraviolet or visible light irradiation. We demonstrated that photoexcited aliphatic ketones, such as acetone and diacetyl, can be used as promising low-cost radical initiators to generate CF3 radicals from sodium triflinate efficiently. The broad
2-Substituted-6-trifluoromethyl purine derivatives with adenosine-A3 antagonistic activity
申请人:Koch Melle
公开号:US20060052331A1
公开(公告)日:2006-03-09
The present invention relates to 2-substituted-6-trifluoromethyl purine derivatives as selective adenosine antagonists, in particular adenosine-A
3
receptor antagonists, to methods for the preparation of these compounds and to novel intermediates useful for the synthesis of said purine derivatives.
The compounds have the general formula (1)
wherein the symbols have the meanings given in the specification.
Verfahren zur Herstellung von 4-Hydroxy-6-polyfluor-alkylpyrimidinen
申请人:LONZA AG
公开号:EP0395977A1
公开(公告)日:1990-11-07
Beschrieben wird ein Verfahren zur Herstellung von 4-Hydroxy-6-polyfluoralkylpyrimidinen, ausgehend von einem Polyfluoralkylcarbonylessigsäureniedrigalkylester und einem Formamidinsalz, sowie ein neues Zwischenprodukt, das 4-Hydroxy-6-pentafluorehtylpyrimidin.
Diese 4-Hydroxy-6-polyfluoralkylpyrimidine können zur Herstellung von Trifluormethylpyrimidinen, Trifluormethylpurinen und Pentafluorethylpyrimidinen verwendet werden.
Compounds of the formula
1
are neuropeptide antagonists and are effective in treating feeding disorders, cardiovascular diseases and other physiological disorders related to an excess of neuropeptide Y.
式中的化合物
1
是神经肽拮抗剂,可有效治疗进食障碍、心血管疾病和其他与神经肽 Y 过量有关的生理紊乱。