Addition of Grignard or organolithiumreagents to N-(α-haloacyl)-N-alkylsubstituted anthranilonitriles (e.g. N-(2-bromopropionyl)-N-methyl-2-cyanoaniline) induced anion formation followed by cyclization to 4-amino-2-quinolinones (e.g. 4-amino-1,3-dimethyl-2-quinolinone (10)). Substrates lacking α-hydrogen atoms, such as N-(α-bromoisobutyryl)-2-cyanoaniline, also yielded 3,3-diaethylquinolinedione (9b)
Rhodium(III)-Catalyzed Direct Cyanation of Aromatic C–H Bond to Form 2-(Alkylamino)benzonitriles Using <i>N</i>-Nitroso As Directing Group
作者:Jiawei Dong、Zhongjie Wu、Zhengyi Liu、Ping Liu、Peipei Sun
DOI:10.1021/acs.joc.5b01666
日期:2015.12.18
2-(Alkylamino)benzonitriles were synthesized via a rhodium-catalyzed cyanation on the aryl C–H bond and subsequent denitrosation of N-nitrosoarylamines using a removable nitroso as the directing group, in which N-cyano-N-phenyl-p-methylbenzenesulfonamide (NCTS) was used as the “CN” source. Various substituents on the aryl ring and amino group of N-nitrosoarylamines tolerated the reaction, and the corresponding
One-pot multistep synthesis of 3,4-fused isoquinolin-1(2H)-one analogs
作者:Lianhai Li、Waepril Kimberly S. Chua
DOI:10.1016/j.tetlet.2011.01.089
日期:2011.4
We have developed a robust approach for the synthesis of 3,4-fused isoquinolin-1(2H)-one analogs. A benzonitrile or a nicotinonitrile bearing an ortho-substituent, such as –OH, –SH, or –NHR (R = alkyl or aryl) can be deprotonated by KOtBu and then reacted with methyl 2-(bromomethyl)benzoate (8) to form its corresponding O-, S-, or N-alkylation product. The product thus formed is then treated with KOtBu
我们已经开发了一种强大的方法,用于合成3,4-融合的异喹啉-1(2H)-one类似物。带有邻位取代基(例如–OH,–SH或–NHR(R =烷基或芳基))的苄腈或烟腈可以通过KO t Bu进行质子化,然后与2-(溴甲基)苯甲酸甲酯反应(8)形成其相应的O-,S-或N-烷基化产物。然后将如此形成的产物再次用KO t Bu处理以引发级联过程,该级联过程将导致其相应的3,4-稠合的异喹啉-1(2H)-一的形成。这种多步合成以及最终产物的纯化可以一锅法完成。
THIAZOLIDINE DERIVATIVES AND MEDICINAL USE THEREOF
申请人:SAKASHITA Hiroshi
公开号:US20070259880A1
公开(公告)日:2007-11-08
A thiazolidine derivative represented by the formula (I)
wherein each symbol is as defined in the specification, and a pharmaceutically acceptable salt thereof exhibit a potent DPP-IV inhibitory activity, and can be provided as an agent for the prophylaxis or treatment of diabetes, an agent for the prophylaxis or treatment of obesity and the like.
FUSED HETEROCYCLIC COMPOUNDS AS ION CHANNEL MODULATORS
申请人:Corkey Britton
公开号:US20140303158A1
公开(公告)日:2014-10-09
The present invention relates to compounds that are sodium channel inhibitors and to their use in the treatment of various disease states, including cardiovascular diseases and diabetes. In particular embodiments, the structure of the compounds is given by Formula I:
wherein W
1
, W
2
, W
3
, R
1
, Q, X
1
, X
2
and X
3
are as described herein, to methods for the preparation and use of the compounds and to pharmaceutical compositions containing the same.