Total asymmetric synthesis of (7S,9R)-(+)-bisacumol
摘要:
A facile stereoselective synthetic route to (7S,9R)-(+)-bisacumol 1 has been achieved. This novel approach derives its asymmetry by employing asymmetric dihydroxylation and CBS reduction processes. The resulting sesquiterpene 1 was produced with highly enantio- and diastereoselectivity. (C) 2003 Elsevier Science Ltd. All rights reserved.
Total synthesis of (R)- and (S)-turmerone and (7S,9R)-bisacumol by an efficient chemoenzymatic approach
作者:Ahmed Kamal、M. Shaheer Malik、Shaik Azeeza、Shaik Bajee、Ahmad Ali Shaik
DOI:10.1016/j.tetasy.2009.05.006
日期:2009.6
An enantioselective synthesis of (R)-, (S)-turmerone and (7S,9R)-bisacumol is described. The enantiomerically pure key intermediates, a substituted butanoate ester and acid are utilized in the synthesis of both enantiomers of turmerone. The lipase catalyzed resolution studies of the acetate of bisacumol have been exploited towards the totalsynthesis of the naturally occurring cytotoxic sesquiterpene
Acetylcholinesterase Inhibitory Activity of Volatile Oil from Peltophorum dasyrachis Kurz ex Bakar (Yellow Batai) and Bisabolane-Type Sesquiterpenoids
作者:Mai Fujiwara、Nobuo Yagi、Mitsuo Miyazawa
DOI:10.1021/jf9042387
日期:2010.3.10
compositions and acetylcholinesterase (AChE) inhibitory activitiy of the volatileoilfrom the bark of PeltophorumdasyrachisKurzexBakar (yellowbatai) were evaluated. As a result, 68 compounds, accounting for 88.0% of the total oil, were identified. The main characteristic constituent in P. dasyrachis was isolated by silica gel column chromatography and found to be a sesquiterpenoid, (+)-(S)-ar-turmerone
在这项研究中,评估了来自Peltophorum dasyrachis Kurz ex Bakar(黄色batai)皮中的挥发油的化学成分和乙酰胆碱酯酶(AChE)抑制活性。结果,鉴定出68种化合物,占总油量的88.0%。在主特征性的构成P. dasyrachis物通过硅胶柱色谱法分离并发现是倍半萜,(+) - (小号) -芳-turmerone(1)。在AChE抑制试验中,挥发油显示出有效的抑制活性,IC 50值为83.2±2.8μg/ mL。在挥发油成分和特征倍半萜中,(+)-(S)-ar-turmerone(1)和(+) - (小号)二氢AR -turmerone(2)是有效的化合物,以剂量依赖的方式抑制乙酰胆碱酯酶,用IC 50倍分别为191.1±0.3和81.5±0.2的值μM, 。(+) - (小号)二氢AR -turmerone(2),特别是,被认为是最有效的乙酰胆碱酯酶抑制剂
AGENT FOR PREVENTING/AMELIORATIG LIFE STYLE-RELAETD DISEASES CONTAINING TURMERIC ESSENTIAL OIL COMPONENT
申请人:Kaneka Corporation
公开号:EP1752144A1
公开(公告)日:2007-02-14
The present invention has its object to provide an agent for preventing and/or ameliorating life style-related diseases which contains, as an active ingredient, a substance derived from a safe food material having a long history of being eaten as a food and which is capable of being utilized as functional foods such as health foods or functional health foods (specific health foods, functional nutritive foods).
The agent for preventing and/or ameliorating life style-related diseases according to the invention contains, as an active ingredient, at least one compound selected from the group consisting of ar-turmerone, α-turmerone, β-turmerone, curlone, bisacumol and β-sesquiphellandrene, or at least one compound selected from among the bisabolane type sesquiterpenoids derived from Curcuma longa L., and therefore is useful for preventing and/or ameliorating diabetes, visceral fat obesity, metabolic syndrome and obesity, among others.