subsequent C–Cbond formation have emerged as powerful synthetic tools for the synthesis of elaborate cyclic molecules. In this report, we introduce an efficient synthetic method of 3,4-unsubstituted isocoumarins adopting an electron-deficient CpERh complex as the catalyst. The use of vinylene carbonate as a vinylene transfer reagent enables the directconstruction of isocoumarins from readily available
惰性C–H键的过渡金属催化活化和随后的C–C键形成已成为合成精细环状分子的有力合成工具。在本报告中,我们介绍了一种有效的合成方法,该方法采用缺电子的Cp E Rh络合物作为催化剂来合成3,4-未取代的异香豆素。碳酸亚乙烯酯作为亚乙烯基转移试剂的使用使得可以从容易获得的苯甲酸直接构建异香豆素,而无需任何外部氧化剂和碱。通过计算分析评估反应机理,以发现催化循环内前所未有的“铑转移”事件。
JPH05317396A
申请人:——
公开号:JPH05317396A
公开(公告)日:1993-12-03
JPS58162586A
申请人:——
公开号:JPS58162586A
公开(公告)日:1983-09-27
Novel Quinoline Compound, and Composition Containing Centipede Extract or Compounds Isolated Therefrom for Prevention and Treatment of Cardiovascular Disease
申请人:Park Ho Yong
公开号:US20090247758A1
公开(公告)日:2009-10-01
The present invention relates to a composition for the prevention and treatment of cardiovascular diseases containing the novel quinoline compound, the centipede extracts or compounds isolated from the extracts. The novel quinoline compound, the centipede extracts or a quinoline compound and a phenol compound isolated from the extracts of the invention exhibit excellent LDL-antioxidant activity, ACAT inhibiting activity, and anti-inflammatory activities, so that they can be included as an effective ingredient in a composition for the prevention and treatment of cardiovascular disease including hyperlipidemia, atherosclerosis, coronary heart disease, and myocardial infarction mediated by LDL-oxidation, cholesteryl ester synthesis and accumulation, and inflammation.
NOVEL QUINOLINE COMPOUND, AND COMPOSITION CONTAINING CENTIPEDE EXTRACT OR COMPOUNDS ISOLATED THEREFROM FOR PREVENTION AND TREATMENT OF CARDIOVASCULAR DISEASE
申请人:PARK Ho Yong
公开号:US20120220626A1
公开(公告)日:2012-08-30
The present invention relates to a composition for the prevention and treatment of cardiovascular diseases containing the novel quinoline compound, the centipede extracts or compounds isolated from the extracts. The novel quinoline compound, the centipede extracts or a quinoline compound and a phenol compound isolated from the extracts of the invention exhibit excellent LDL-antioxidant activity, ACAT inhibiting activity, and anti-inflammatory activities, so that they can be included as an effective ingredient in a composition for the prevention and treatment of cardiovascular disease including hyperlipidemia, atherosclerosis, coronary heart disease, and myocardial infarction mediated by LDL-oxidation, cholesteryl ester synthesis and accumulation, and inflammation.