Cytochathiazines A–C: Three Merocytochalasans with a 2H-1,4-Thiazine Functionality from Coculture of Chaetomium globosum and Aspergillus flavipes
Organic Letters(2018)
摘要
Cytochathiazines A–C (1–3), which represent a new type of merocytochalasan, were isolated from coculture of Chaetomium globosum and Aspergillus flavipes. Compounds 1–3 are the first natural products featuring an unprecedented 2H-1,4-thiazine functionality. Plausible biosynthetic pathways for 1–3 with a chaetoglobosin and a dipeptide as the main constitutional units were proposed. Compound 2 induced apoptosis in leukemia cells through the activation of caspase-3 and the degradation of poly ADP-ribose polymerase.
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关键词
merocytochalasans
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