A new hemiterpene glycoside from the ripe tomatoes
A new hemiterpene glycoside from the ripe tomatoes
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来自成熟番茄的新半萜糖苷
DOI：
10.1080/14786419.2014.974053
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
T. Nohara
中科院分区：
文献类型：
--
作者：
M. Ono;S. Yasuda;Y. Shiono;C. Furusawa;S. Inaba;T. Tanaka;T. Ikeda;T. Nohara
从茄科植物番茄（Lycopersicon esculentum）的果实中分得一个新的半萜苷（1）。根据光谱数据和化学证据，确定化合物1的化学结构为2-甲基丁-1-醇β-d-吡喃葡萄糖基-（1 → 6）-β-d-吡喃葡萄糖苷。此外，对分离得到的化合物进行了1，1-二苯基-2-苦肼基自由基清除活性的测定。其中色氨酸、4-O-β-d-葡萄糖基咖啡酸和二氢对香豆醇γ-O-β-d-葡萄糖苷在0.5 mM浓度下的清除率分别为42.0%、50.1%和76.0%。
A new hemiterpene glycoside (1) was isolated from ripe tomatoes (the fruit ofLycopersicon esculentum, Solanaceae) along with eight known compounds. The chemical structure of1was determined to be 2-methylbutan-1-ol β-d-glucopyranosyl-(1 → 6)-β-d-glucopyranoside, based on spectroscopic data as well as chemical evidence. In addition, the radical-scavenging activities of the isolated compounds on the free radical of 1,1-diphenyl-2-picrylhydrazyl were examined. Among the tested compounds, tryptophan, 4-O-β-d-glucopyranosyl caffeic acid and dihydro-p-coumaryl alcohol γ-O-β-d-glucopyranoside demonstrated 42.0%, 50.1% and 76.0% scavenging activities, respectively, at a concentration of 0.5 mM.