Simple inorganic base promoted C–N and C–C formation: synthesis of benzo[4,5]imidazo[1,2-<i>a</i>]pyridines as functional AIEgens used for detecting picric acid
作者:Kai Yang、Shi-He Luo、Si-Hong Chen、Xi-Ying Cao、Yong-Jun Zhou、Yan-Lan Lin、Yan-Ping Huo、Zhao-Yang Wang
DOI:10.1039/d1ob01424b
日期:——
Metal-free catalyzed intermolecular tandem Michaeladdition/cyclization has been developed for the synthesis of benzo[4,5]imidazo[1,2-a]pyridines from α-bromocinnamaldehyde and 2-substituted benzimidazoles. The reaction promoted by a simple inorganic base displays moderate to good yields and good functional group tolerance. The optical properties of some typical products have been investigated. We
无金属催化分子间串联迈克尔加成/环化已被开发用于从 α-溴肉桂醛和 2-取代苯并咪唑合成苯并[4,5]咪唑并[1,2- a ]吡啶。由简单的无机碱促进的反应显示出中等至良好的产率和良好的官能团耐受性。研究了一些典型产品的光学特性。我们发现,由于苯并[4,5]咪唑并[1,2- a ]吡啶的C1位存在限制分子内运动的苯环,作为一种新型的聚集诱导发射(AIE) luminogen (AIEgen),它们显示出非常好的固态荧光,量子产率高达 88.80%。重要的是,化合物3b的 AIE 性能可用于检测硝基芳香炸药苦味酸 (PA),检测限和淬灭常数分别为 42.5 nM 和 7.27 × 10 4 M -M。
NOVEL HETEROCYCLIC COMPOUND
申请人:DAEWOONG PHARMACEUTICAL CO., LTD.
公开号:US20170088551A1
公开(公告)日:2017-03-30
The present invention relates to a compound represented by chemical formula 1, which can be used for the prevention and treatment of diseases caused by abnormality in a prolyl-tRNA synthetase (PRS) activity, or a pharmaceutically acceptable salt thereof, a method for preparing the same, and a pharmaceutical composition comprising the same.
Compounds of formula Ia and Ib
wherein A, B, C and R
1
are described herein.
本文描述的是化学式Ia和Ib的化合物,其中A、B、C和R1被定义。
Substituted Purine And 7-Deazapurine Compounds
申请人:Olhava Edward J.
公开号:US20120142625A1
公开(公告)日:2012-06-07
The present invention relates to substituted purine and 7-deazapurine compounds. The present invention also relates to pharmaceutical compositions containing these compounds and methods of treating disorders in which DOT1-mediated protein methylation plays a part, such as cancer and neurological disorders, by administering these compounds and pharmaceutical compositions to subjects in need thereof.