Depsitinuside: a new depside galactoside from an endophytic fungus isolated from<i>Viburnum tinus</i>
作者:Mamona Nazir、Misbah Sultan、Naheed Riaz、Maria Hafeez、Hidayat Hussain、Ishtiaq Ahmed、Barbara Schulz、Siegfried Draeger、Abdul Jabbar、Karsten Krohn、Muhammad Ashraf、Muhammad Saleem
DOI:10.1080/10286020.2011.606811
日期:2011.10
Chromatographic purification of the extract of an endophytic fungal culture yielded depsitinuside (1), a new phenolic ester together with ergosterol (2) and (22E,24S)-24-methyl-5-α-cholesta-7,22-diene-3β,5,6β-triol (3). The structure of 1 was elucidated based on 1D, 2D NMR spectroscopy and high-resolution mass spectrometry, whereas the known compounds (2 and 3) were identified by 1H NMR, mass spectrometry
进行内生真菌培养物的色谱纯化,得到了鹿角苷(1),一种新的酚酯以及麦角甾醇(2)和(22 E,24 S)-24-甲基-5-α-胆甾醇7,22-二烯-3β,5,6β-三醇(3)。的结构1是基于一维,二维NMR光谱和高分辨率质谱法阐明,而公知的化合物(2和3)通过确定1 H NMR,质谱,和与文献值进行比较。化合物1 评估了其对乙酰胆碱酯酶,丁酰胆碱酯酶和脂氧合酶的酶抑制潜能,发现该酶无活性(浓度为2 mg / ml时抑制率为10%–40%)。