Pestalotiones A–D: Four New Secondary Metabolites from the Plant Endophytic Fungus Pestalotiopsis Theae
作者:Longfang Guo、Jie Lin、Shubin Niu、Shuchun Liu、Ling Liu
DOI:10.3390/molecules25030470
日期:——
Two new xanthone derivatives, pestalotiones A (1) and B (2), one new diphenyl ketone riboside, pestalotione C (7), and one new diphenyl ether, pestalotione D (8), along with five known compounds isosulochrin dehydrate (3), 3,8-dihydroxy-6-methyl-9-oxo-9H-xanthene-1-carboxylate (4), isosulochrin (5), chloroisosulochrin (6), and pestalotether D (9), were isolated from the crude extract of the plant endophytic
两种新的呫吨酮衍生物,pestalotione A (1) 和 B (2),一种新的二苯酮核苷,pestalotione C (7),和一种新的二苯醚,pestalotione D (8),以及五种已知的化合物 isoulochrin dehydrate (3) 、 3,8-dihydroxy-6-methyl-9-oxo-9H-xanthene-1-carboxylate (4)、isosulochrin (5)、chloroisosulochrin (6) 和pestalotether D (9),是从粗提物中分离出来的。植物内生真菌 Pestalotiopsis theae (N635)。新化合物的结构由 HRESIMS 和 1D/2D-NMR 光谱数据明确推断。化合物 6 对 HeLa 细胞系显示出适度的细胞毒性,IC50 值为 35.2 μM。化合物 9 还显示出对 HeLa 和