Abstract A new compound, integracid (1), together with four known compounds were isolated from the dichloromethane (CH2Cl2) extract from Artemisia integrifolia L. The structures of compounds (1–5) were elucidated by spectroscopic methods, including ultraviolet, infrared (IR), high resolution-electrospray ionization-mass spectrometry (HR-ESI-MS) and extensive one-dimensional (1D) and two-dimensional (2D) nuclear magnetic resonance (NMR) techniques, and by comparison with data reported in the references. Antibacterial activities of the compounds were evaluated against various bacteria.

中文翻译：

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青蒿5种化合物的结构解析及抗菌活性

摘要 从青蒿的二氯甲烷 (CH2Cl2) 提取物中分离出一种新化合物 integracid (1) 和四种已知化合物。 化合物 (1-5) 的结构通过紫外、红外 (IR )、高分辨率电喷雾电离质谱 (HR-ESI-MS) 和广泛的一维 (1D) 和二维 (2D) 核磁共振 (NMR) 技术，并与参考文献中报告的数据进行比较。评价了化合物对各种细菌的抗菌活性。