Two New Eremophilane‐Type Sesquiterpenoids from Japanese Liverwort <i>Bazzania japonica</i>
Two New Eremophilane‐Type Sesquiterpenoids from Japanese Liverwort <i>Bazzania japonica</i>
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日本地钱<i>Bazzania japonica</i>中的两种新Eremophilane型倍半萜类化合物
DOI：
10.1002/cbdv.202300131
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发表时间：
2023
影响因子：
2.9
通讯作者：
Kamada Takashi
中科院分区：
文献类型：
--
作者：
Fukada Ryosuke;Kawano Jin;Tsuruta Tomoki;Nonaka Takuto;Sato Kosuke;Miyajima Susumu;Ishigami Shinnosuke;Ishii Takahiro;Nishikawa Keisuke;Asakawa Yoshinori;Kamada Takashi
从日本静冈县森町采集的茎叶地钱 Bazzania japonica 中分离出两种新的 eremophilane 型倍半萜类化合物 Fusumaols A (1) 和 B (2)。它们的结构是使用广泛的光谱（IR、MS 和 2D NMR）数据建立的，并且 1 的绝对构型是通过改进的 Mosher 方法确定的。这是首次在地钱属Bazzania中发现eremophilanes。采用改进的滤纸浸渍法评价了化合物1和2对稻象甲成虫的驱避活性。两种倍半萜类化合物均表现出中等的驱避活性。
Two new eremophilane‐type sesquiterpenoids, fusumaols A (1) and B (2), were isolated from the stem‐leafy liverwort,Bazzania japonicacollected in Mori‐Machi, Shizuoka, Japan. Their structures were established using extensive spectroscopic (IR, MS, and 2D NMR) data, and the absolute configuration of1was determined by the modified Mosher's method. This is the first time eremophilanes have been discovered in the liverwort genusBazzania. Compounds1and2were evaluated for their repellent activity against the adult population of the rice weevilSitophilus zeamaisusing the modified filter paper impregnation method. Both sesquiterpenoids showed moderate repellent activities.