Synthesis and Structure-Activity Relationships of Constrained Heterocyclic Analogues of Combretastatin A4
作者:Martin Arthuis、Renée Pontikis、Guy G. Chabot、Johanne Seguin、Lionel Quentin、Stéphane Bourg、Luc Morin-Allory、Jean-Claude Florent
DOI:10.1002/cmdc.201100154
日期:2011.9.5
A series of combretastatinA4 (CA4) analogues with a lactam or lactone ring fused to the trimethoxyphenyl or the B‐phenyl moiety were synthesized in an efficient and stereoselective manner by using a domino Heck–Suzuki–Miyaura coupling reaction. The vascular‐disrupting potential of these conformationally restricted CA4 analogues was assessed by various in vitro assays: inhibition of tubulin polymerization
Gold-Catalyzed Hydroarylation of <i>N</i>-Aryl Alkynamides for the Synthesis of 2-Quinolinones
作者:Taylor Vacala、Lauren P. Bejcek、Chloé G. Williams、Alexandra C. Williamson、Paul A. Vadola
DOI:10.1021/acs.joc.6b02984
日期:2017.3.3
A mild method for the synthesis of 2-quinolinones via hydroarylation of N-aryl alkynamides is reported. While traditional methods have relied on the use of strong Brønsted or Lewis acids, this report describes the development of mild reaction conditions that yield 2-quinolinones in good to excellent yield using a commercially available gold catalyst. Substrates bearing a variety of functional groups