A Palladium(0)‐Catalyzed C4 Site‐Selective C−H Difluoroalkylation of Isoquinolin‐1(
<i>2H</i>
)‐Ones
作者:You‐Quan Zhu、Li‐Wen Hui、Shi‐Bo Zhang
DOI:10.1002/adsc.202001614
日期:2021.4.13
Herein, we report a Palladium(0)‐catalyzed C4 site‐selective C−H difluoroalkylation of isoquinolin‐1(2H)‐ones through a radical pathway. The present reaction enables the preparation of 2,2‐difluoro‐2‐(1‐oxo‐1,2‐dihydroisoquinolin‐4‐yl)acetates/acetamides through the direct cross‐couplingreaction of readily available isoquinolin‐1(2H)‐ones with 2‐bromo‐2,2‐difluoroacetates or 2‐bromo‐2,2‐difluoroacetamides
在本文中,我们报告了通过自由基途径对异喹啉-1(2H)-进行钯(0)催化的C4位点选择性CH二氟烷基化反应。本反应可通过容易获得的异喹啉-1(2H)-直接交叉偶联反应来制备2,2-二氟-2-(1-氧代-1,2-二氢异喹啉-4-基)乙酸酯/乙酰胺含2溴2,2,2-二氟乙酸酯或2溴2,2,2-二氟乙酰胺的化合物。因此,该方法提供了将二氟乙酸酯或二氟乙酰胺部分安装到生物活性分子中的有效且方便的方法。生物测定结果表明,在C4位置引入这些二氟基团有助于改善其抗病毒活性和化合物5 ab 被发现与商业宁南霉素具有相似的抗病毒活性。
NOVEL AZACYCLYL-SUBSTITUTED ARYLDIHYDROISOQUINOLINONES, PROCESS FOR THEIR PREPARATION AND THEIR USE AS MEDICAMENTS
申请人:SCHWINK Lothar
公开号:US20090264403A1
公开(公告)日:2009-10-22
The invention relates to azacyclyl-substituted aryldihydroisoquinolinones and their derivatives, and their physiologically tolerated salts and physiologically functional derivatives, their preparation, medicaments comprising at least one azacyclyl-substituted aryldihydroisoquinolinone of the invention or its derivative, and the use of the azacyclyl-substituted aryidihydroisoquinolinones of the invention and their derivatives as MCH antagonists.
Substituted Piperazine Compounds And Methods Of Use Thereof
申请人:SUNSHINE LAKE PHARMA CO., LTD.
公开号:US20160244429A1
公开(公告)日:2016-08-25
Provided herein are novel piperazine compounds and pharmaceutical compositions thereof comprising the piperazine compounds for inhibiting serotonin reuptake and/or acting as 5-HT1A receptor agonists. Also provided herein are methods for preparing the novel piperazine compounds and pharmaceutical compositions thereof, and uses of them in treating central nervous system (CNS) dysfunction.