Yi-Yun Yuan, Yan Li, Wen-Yu Lu, Ai-Lin Liang, Jing Li, Wen-Xuan Wang
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Abstract
Two new cytochalasans, xylariaides A (1) and B (2), were isolated and identified from a soil fungus Xylaria sp. Y01. Their structures were unambiguously determined by extensive spectroscopic methods including high resolution electrospray ionization mass spectrometry, ultraviolet radiation, infrared spectroscopy, and 1D/2D NMR, as well as in-depth quantum chemical calculations of gauge-including atomic orbital (GIAO) 13C NMR chemical shifts, electronic circular dichroism (ECD), and spin–spin coupling constants. The unprecedented core structure with a 5/6/5/3 fused tetracyclic ring system further enriches the scaffold types of cytochalasans.
期刊介绍：
Natural Products and Bioprospecting serves as an international forum for essential research on natural products and focuses on, but is not limited to, the following aspects:
Natural products: isolation and structure elucidation
Natural products: synthesis
Biological evaluation of biologically active natural products
Bioorganic and medicinal chemistry
Biosynthesis and microbiological transformation
Fermentation and plant tissue cultures
Bioprospecting of natural products from natural resources
All research articles published in this journal have undergone rigorous peer review. In addition to original research articles, Natural Products and Bioprospecting publishes reviews and short communications, aiming to rapidly disseminate the research results of timely interest, and comprehensive reviews of emerging topics in all the areas of natural products. It is also an open access journal, which provides free access to its articles to anyone, anywhere.
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