Synthesis of Substituted 4-, 5-, 6-, and 7-Azaindoles from Aminopyridines via a Cascade C–N Cross-Coupling/Heck Reaction
作者:Marina J. D. Pires、Diogo L. Poeira、Sara I. Purificação、M. Manuel B. Marques
DOI:10.1021/acs.orglett.6b01500
日期:2016.7.1
cascade C–N cross-coupling/Heckreaction of alkenyl bromides with amino-o-bromopyridines is described for a straightforward synthesis of substituted 4-, 5-, 6-, and 7-azaindoles using a Pd2(dba)3/XPhos/t-BuONa system. This procedure consists of the first cascade C–N cross-coupling/Heck approach toward all four azaindole isomers from available aminopyridines. The scope of the reaction was investigated and
一种实用的钯催化级联C-N交联偶合/的Heck反应的链烯基溴化物与氨基ö -bromopyridines用于使用Pd取代的4-,5-,6-,和7-氮杂吲哚的合成简单描述2( dba)3 / XPhos / t -BuONa系统。此过程包括对来自可用氨基吡啶的所有四个氮杂吲哚异构体的第一个级联C–N交叉偶联/ Heck方法。研究了反应的范围,并使用了几种烯基溴化物,从而可以得到不同的取代的氮杂吲哚。该协议被进一步探讨用于Ñ取代氨基Ò -bromopyridines。
Ultrasound assisted one-pot synthesis of 1,2-diaryl azaindoles via Pd/C-Cu catalysis: Identification of potential cytotoxic agents
作者:Rapolu Venkateshwarlu、Shambhu Nath Singh、Vidavalur Siddaiah、Hindupur Ramamohan、Rambabu Dandela、Manojit Pal
DOI:10.1016/j.tetlet.2019.151326
日期:2019.12
Ultrasound assisted one-pot and direct access to 1,2-diaryl substituted azaindole derivatives has been achieved via the sequential N-arylation followed by coupling-cyclization under Pd/C-Cu catalysis. The methodology involved initial C-N bond forming reaction (step 1) between an appropriate o-bromo substituted amino pyridine and iodoarene followed by C-C and C-N bond formation (step 2) between the
γ-Carboline derivatives with anti-bovine viral diarrhea virus (BVDV) activity
作者:Kumiko Sako、Hiroshi Aoyama、Shinichi Sato、Yuichi Hashimoto、Masanori Baba
DOI:10.1016/j.bmc.2008.01.052
日期:2008.4.1
Based on anti-viral screening of our heteroaromatics derived from thalidomide, the gamma-carboline skeleton has been identified as a superior scaffold structure for compounds with potent anti-bovine viral diarrhea virus (BVDV) activity. Structural development studies led to a potent anti-viral agent, SK5M (5-methyl-gamma-carboline), with the EC50 of 0.26 mu M. (C) 2008 Elsevier Ltd. All rights reserved.
Synthesis of Carbolines by Photostimulated Cyclization of Anilinohalopyridines
作者:Joydev K. Laha、Silvia M. Barolo、Roberto A. Rossi、Gregory D. Cuny
DOI:10.1021/jo200923n
日期:2011.8.5
A general synthetic route to prepare all four carboline regioisomers by photo stimulated cyclization of anilinohalopyridines is described. The methodology affords various substituted carbolines in good to excellent yields. In the case of alpha-carbolines, the S(RN)1 methodology complements previously reported palladium-catalyzed cyclization approaches.