The direct C−H alkynylation of azoles with terminal alkynes proceeds efficiently under a nickel/O2 catalytic system. On the other hand, a copper/air catalyst enables the coupling of polyfluoroarenes with terminal alkynes. These catalyses provide new accesses to arylacetylenes through the formal direct Sonogashira coupling.
在镍/ O 2催化体系下,唑类与末端炔烃的直接CH炔基化反应有效进行。另一方面,铜/空气催化剂能够使多氟芳烃与末端炔烃偶联。这些催化剂通过正式的直接Sonogashira偶联为芳基乙炔提供了新的途径。
Highly Efficient and Versatile Pd-Catalyzed Direct Alkynylation of Both Azoles and Azolines
作者:Seok Hwan Kim、Sukbok Chang
DOI:10.1021/ol100488v
日期:2010.4.16
A highly efficient and versatile Pd-catalyzed directalkynylation reaction of heterocycles with 1-bromoalkynes was developed. The substrate scope of the reaction was very broad to include not only azoles but also azolines for the first time, thus offering an important advance in the direct functionalization of heterocycles.
[EN] INHIBITORS FOR THE Β-CATENIN / T-CELL FACTOR PROTEIN–PROTEIN INTERACTION<br/>[FR] INHIBITORS POUR L'INTERACTION PROTÉINE-PROTÉINE BÊTA-CATÉNINE/FACTEUR DES LYMPHOCYTES T
申请人:H LEE MOFFITT CANCER CT & RES
公开号:WO2019191410A1
公开(公告)日:2019-10-03
Disclosed are inhibitors for the β-catenin/T-cell factor interaction. The inhibitors are selective for β-catenin/T-cell factor over β-catenin/cadherin and β-catenin/APC interactions. Methods of using the disclosed compounds to treat cancer are also disclosed.
N-propargyl-2-alkynylbenzothiazolium aza-enediynes: role of the 2-alkynylbenzothiazolium functionality in DNA cleavage
作者:Dalip Kumar、Wendi M David、Sean M Kerwin
DOI:10.1016/s0960-894x(01)00606-0
日期:2001.11
The 2-alkynylbenzothiazolium salts 3a-d incorporating an N-propargyl moiety have been prepared as aza-enediyne analogues. While these aza-enediynes are shown to be modest DNA cleavage agents, DNA cleavage was also observed with the N-methyl-2-alkynylbenzothiazolium salt 4, which lacks the aza-enediyne moiety. The structural requirements for DNA cleavage, and the correlation of DNA cleavage efficiency with the propensity of these compounds to undergo nucleophilic addition by methanol support a proposed DNA cleavage mechanism involving DNA alkylation. by appropriate 2-alkynyl-substituted benzothiazolium salts. (C) 2001 Elsevier Science Ltd. All rights reserved.
Ligand and solvent-free iron catalyzed oxidative alkynylation of azoles with terminal alkynes
作者:Sachin S. Patil、Rahul P. Jadhav、Sachin V. Patil、Vivek D. Bobade
DOI:10.1016/j.tetlet.2011.08.083
日期:2011.10
A highly efficient and versatile iron catalyzed oxidative alkynylation of azoles with terminal alkynes under ligand and solvent-free conditions is described. (C) 2011 Elsevier Ltd. All rights reserved.