来自……的化学成分。 （你提供的原文不完整，我只能按现有内容翻译）
Chemical constituents from .
作者信息
Zhang You-Yuan, Wang Pei, Song Xi-Qiang, Zuo Wen-Jian, Wang Hao, Chen Liang-Liang, Mei Wen-Li, Dai Hao-Fu
机构信息
a Hainan Key Laboratory of Research and Development of Natural Product from Li Folk Medicine, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences , Haikou 571101 , China.
b Key Laboratory of Protection and Developmental Utilization of Tropical Crop Germplasm Resources, Ministry of Education, College of Horticulture and Landscape Architecture, Hainan University , Haikou 570228 , China.
出版信息
J Asian Nat Prod Res. 2019 Sep;21(9):873-880. doi: 10.1080/10286020.2018.1475476. Epub 2018 May 24.
A new phenolic derivative () and a new dihydrophenanthrene () were isolated from the aerial part of rofe, along with 12 known compounds. The structures of the new compounds were elucidated by spectroscopic analysis，and the relative configuration of compound was determined by -based configuration analysis (JBCA) method. Bioassay result indicated that compound exhibited weak antibacterial activity against and .
从紫背天葵地上部分分离得到一个新的酚类衍生物（）和一个新的二氢菲（），以及12个已知化合物。通过光谱分析阐明了新化合物的结构，并采用基于JBCA的构型分析方法确定了化合物的相对构型。生物活性测试结果表明，化合物对大肠杆菌和金黄色葡萄球菌表现出微弱的抗菌活性。
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