Xiqing Bian

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A new 2(1H)-pyrazinone ring-containing natural product, paenibacillin A (1), together with five known diketopiperazine derivatives 2-6 and two known isoflavones 7-8, was isolated from the culture of an endophytic bacterium Paenibacillus sp. Xy-2. The structure of compound 1 was elucidated by extensive spectral methods, including UV, IR, HR-ESI-MS, 1D and 2D(More)
Long chain-free fatty acids (LCFFAs) play pivotal roles in various physiological functions, like inflammation, insulin resistance, hypertension, immune cell behavior and other biological activities. However, the detection is obstructed by the low contents, structural diversity, high structural similarity, and matrix interference. Herein, a fast(More)
Fungi are remarkable organisms that have a capacity to produce diverse classes of secondary metabolites with a wide variety of biological activities such as antimicrobial activities, acetylcholinesterase inhibitor activities, antitumor activities, anti-inflammatory activities and so on. A recent estimation of the global fungal diversity indicated that(More)
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