Facile One-Pot Transformation of Phenols into<i>o</i>-Cyanophenols
作者:Yuhta Nakai、Katsuhiko Moriyama、Hideo Togo
DOI:10.1002/ejoc.201402817
日期:2014.9
The treatment of phenols with paraformaldehyde in the presence of MgCl2 and Et3N in THF at 80 °C, followed by reaction with molecular iodine and aq. ammonia at room temperature provided the corresponding o-cyanophenols in moderate to good yields. The present reaction is a one-pottransformation of phenols into o-cyanophenols using much less expensive reagents than are typically used; the reaction is
在 MgCl2 和 Et3N 的四氢呋喃中,在 80 °C 下用多聚甲醛处理苯酚,然后与分子碘和水溶液反应。氨在室温下以中等至良好的产率提供相应的邻氰基酚。本反应是使用比通常使用的试剂便宜得多的试剂将苯酚一锅法转化为邻氰基苯酚;该反应不含过渡金属和氰化物。在我们从对溴苯酚制备非布司他的过程中强调了该反应的效用。
Claisen rearrangement of meta-substituted allyl phenyl ethers
作者:J. Malcolm Bruce、Yusuf Roshan-Ali
DOI:10.1039/p19810002677
日期:——
Electron-releasing substituents at the 3-position of allylphenylethers favour Claisenrearrangement of the allyl group to the 6-position, whereas electron-acceptors favour migration to the 2-position. 2-Acylhydroquinone 4-allyl ethers yield, predominantly, the 3-allyl isomers, probably because internal hydrogen bonding confers naphthalenoid character on the aryl residue.
[EN] CELL CYCLE PROGRESSION INHIBITOR<br/>[FR] INHIBITEUR D'ÉVOLUTION DE CYCLE CELLULAIRE
申请人:UNIV KYOTO
公开号:WO2019167973A1
公开(公告)日:2019-09-06
The present invention provides a cell cycle progression inhibitor, a cytostatic agent, and an anticancer agent. The cell cycle progression inhibitor, the cytostatic agent, and the anticancer agent each contains a Hes1 protein-PHB2 protein binding enhancer.
Novel salicylamine derivatives are targeted directly to the mitochondria to increase effectiveness and lower required dosages in the treatment of conditions caused by inflammation or oxidative stress.
A series of novel isoxazolidines based on benzaldehyde derivatives have been synthesized from the cycloaddition of chiral menthone-based nitrone and allyl phenyl ethers. All synthetic compounds were assessed for their in vitro PPA, HPA and HLAG inhibitory activity. The results revealed that all targets exhibited better inhibitory effect against PPA (12.3 +/- 0.4 < IC50 < 38.2 +/- 0.9 mu M), HPA (10.1 +/- 0.4 < IC50 < 26.8 +/- 0.2 mu M) and HLAG (65.4 +/- 1.2 < IC50 < 274.8 +/- 1.1 mu M) when compared with the reference inhibitor, acarbose (IC50 = 284.6 +/- 0.3 mu M for PPA, 296.6 +/- 0.8 mu M for HPA, 780.4 +/- 0.3 mu M for HLAG) with the highest PPA inhibitory activity was ascribed to compound 3g against both PPA and HPA, and 3b against HLAG enzymes, respectively. Structural activity relationships (SARs) were also established for all synthesized compounds and the interaction modes of the most potent inhibitors (3g for PPA and HPA, 3b for HLAG) and the active site with residues of three enzymes were confirmed through molecular docking studies. Furthermore, a combination of molecular docking analysis with the in vitro activities can help to improve prediction success and encourages the uses of some of these molecules as potential alternatives toward the modulation of T2D.