One-pot catalysis of dehydrogenation of cyclohexanones to phenols and oxidative Heck coupling: expedient synthesis of coumarins
作者:Donghee Kim、Minsik Min、Sungwoo Hong
DOI:10.1039/c3cc41296b
日期:——
One-pot reactions leading to highly functionalized coumarins have been developed via a Pd(II)-catalyzed dehydrogenation-oxidative Heck-cyclization process.
通过Pd(II)催化的脱氢-氧化Heck环化过程已经开发出了导致高度功能化香豆素的一锅法反应。
Coumarin Derivatives Exert Anti-Lung Cancer Activity by Inhibition of Epithelial–Mesenchymal Transition and Migration in A549 Cells
作者:Rodrigo Santos Aquino de Araújo、Julianderson de Oliveira dos Santos Carmo、Simone Lara de Omena Silva、Camila Radelley Azevedo Costa da Silva、Tayhana Priscila Medeiros Souza、Natália Barbosa de Mélo、Jean-Jacques Bourguignon、Martine Schmitt、Thiago Mendonça de Aquino、Renato Santos Rodarte、Ricardo Olímpio de Moura、José Maria Barbosa Filho、Emiliano Barreto、Francisco Jaime Bezerra Mendonça-Junior
DOI:10.3390/ph15010104
日期:——
derivatives and isosteres were synthesized from the reaction of triflic intermediates with phenylboronic acids, terminal alkynes, and organozinc compounds through palladium-catalyzed cross-coupling reactions. The in vitro cytotoxiceffect of the compounds was evaluated against two non-small celllung carcinoma (NSCLC) cell lines (A-549 and H2170) and a normal cell line (NIH-3T3) using cisplatin as a reference
Synthesis and Biological Evaluation of (6- and 7-Phenyl) Coumarin Derivatives as Selective Nonsteroidal Inhibitors of 17β-Hydroxysteroid Dehydrogenase Type 1
coumarines 1 and 2 significantly inhibit 17β-HSD1 in a recombinant enzyme assay, with high selectivity against 17β-HSD2. We postulated that the introduction of various p-substituted phenyl moieties to position 6 or 7 of the coumarin core using the Suzuki-Miyaura cross-coupling reaction would provide mimetics of steroidal structures with improved inhibition of 17β-HSD1. The best inhibitor in the series