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作 者:Dennis D. Raga Annabelle A. Herrera Consolacion Y. Ragasa
机构地区:[1]Biology Department, School of Science and Engineering, Ateneo de Manila University [2]Institute of Biology, University of the Philippines [3]Chemistry Department and Center for Natural Sciences and Ecological Research, De La Salle University
出 处:《中国天然药物》2013年第2期128-138,共11页
基 金:supported by the grant from the Philippine Council for Health Research and Development (PCHRD) of the Philippines through the Metro Manila Health Research and Development Consortium (MMHRDC)
摘 要:The dichloromethane extract of the air-dried leaves of Ardisia cf.elliptica(subgenus Tinus)afforded a mixture of bauerenol(1a),α-amyrin(1b)andβ-amyrin(1c).Their structures were identified by NMR spectroscopy.Mixtures of the triterpenes (1a-1c)at ratios of 2:2:1,2:2:3 and 1:1:1 were tested for their angio-suppressive effects on duck chorioallantoic membrane (CAM).All three ratios were found to be effective in restricting inter-capillary length,while 1a-1c(2:2:1)was most effective in reducing branch point density with 100%CAM viability and embryo survivability,suggesting a high impact angio-suppressive potential of 1a-1c(2:2:1).The dichloromethane extract of the air-dried leaves ofArdisia cf. elliptica (subgenus Tinus) afforded a mixture of bauerenol (la), a-amyrin (lb) and β-amyrin (le). Their structures were identified by NMR spectroscopy. Mixtures of the triterpenes (la-le) at ratios of 2 : 2 : 1, 2 : 2 : 3 and 1 : 1 : 1 were tested for their angio-suppressive effects on duck chorioallantoic membrane (CAM). All three ratios were found to be effective in restricting inter-capillary length, while la-le (2 : 2 : 1) was most effective in reducing branch point density with 100% CAM viability and embryo survivability, suggesting a high impact angio-suppressive potential of la-lc (2 : 2 : 1).
关 键 词:Ardisia cf.elliptica(subgenus Tinus) MYRSINACEAE Bauerenol α-Amyrin β-Amyrin Angio-suppressive
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