An Efficient Construction of 4-Oxo-4H-chromene-2-carboxylate Derivatives via One-Pot Cascade Reaction Under Solvent-Free Conditions
摘要:
An efficient synthetic strategy to chromone derivatives from commercially available diethyl acetylenedicarboxylate and phenols via a one-pot cascade reaction has been developed. Performing the reaction using pyridine and polyphosphoric acid as the catalyst at room temperature and 90 degrees C without any solvent gave the chromone derivatives in good to high yields at one time. A possible reaction pathway was also proposed and supported by the experiment. This protocol is environmentally friendly and metal-free, with advantages including short reaction times, convenient operation, and mild reaction conditions.
[EN] SUBSTITUTED CYCLOLAKYLS AS MODULATORS OF THE INTEGRATED STRESS PATHWAY<br/>[FR] CYCLOLALKYLES SUBSTITUÉS EN TANT QUE MODULATEURS DE LA VOIE DE STRESS INTÉGRÉE
申请人:CALICO LIFE SCIENCES LLC
公开号:WO2020223536A1
公开(公告)日:2020-11-05
Provided herein are compounds, compositions, and methods useful for modulating the integrated stress response (ISR) and for treating related diseases, disorders and conditions.
本文提供了用于调节综合应激反应(ISR)并治疗相关疾病、疾病和症状的化合物、组合物和方法。
Quinolinyl-chromone derivatives and use for treatment of hypersensitive
申请人:Rorer Pharmaceutical Corporation
公开号:US04977162A1
公开(公告)日:1990-12-11
This invention relates to certain quinolinyl-chromone compounds and their use as valuable pharmaceutical agents, particularly as lipoxygenase inhibitors and/or leukotriene antagonists possessing anti-inflammatory and anti-allergic properties.
Quinolinyl-benzopyran derivatives as antagonists of leukotriene D4
申请人:——
公开号:US05082849A1
公开(公告)日:1992-01-21
This invention relates to certain quinolinyl-benzopyran compounds and their use as valuable pharmaceutical agents, particularly as lipoxygenase inhibitors and/or leukotriene antagonists and/or mediator release inhibitors possessing anti-inflammatory and anti-allergic properties.
Synthesis of helianane, an unusual marine sesquiterpene employing ring-expansion by flash vacuum thermolysis
作者:Subir K. Sabui、Ramanathapuram V. Venkateswaran
DOI:10.1016/j.tetlet.2004.10.101
日期:2004.12
A total synthesis of the marine sesquiterpene helianane 1 is described involving the thermal rearrangement of the benzoxabicyclo[4.2.0]octenone 4 to generate the dienone 5 incorporating the benzoxocane ring system of 1. This dienone was converted to the key ketone 11, which on interaction with methylmagnesium iodide followed by hydrogenation of the resulting alkene 18 furnished helianane 1.
The present invention relates to novel 1-(2,3-dihydro-1,4-benzodioxin-2-yl)-methanamine derivatives, useful as modulators of dopamine neurotransmission, and more specifically as dopaminergic stabilizers. In other aspects the invention relates to the use of these compounds in a method for therapy and to pharmaceutical compositions comprising the compounds of the invention.