analysed by GC-MS. A total number of 33 compounds from different classes were rigorously identified by comparison of mass spectra to library spectra and of retention indices to tabulated data from the literature. For unknown compounds structural suggestions were delineated from the mass spectra and verified by chemical synthesis of reference materials. Through this approach two 2-alkylated furan derivatives
来自真菌Daldinia 的分离物的挥发物 cf. childiae是从中国采集的标本中获得的,使用闭环剥离装置收集并通过 GC-MS 进行分析。通过将质谱与库谱以及保留指数与文献中的表格数据进行比较,严格鉴定了来自不同类别的总共 33 种化合物。对于未知化合物,从质谱中描绘出结构建议,并通过参考材料的
化学合成进行验证。通过这种方法,鉴定出了两种 2-烷基化
呋喃衍
生物,表明Daldinia属仍然是发现新型次生代谢物的有趣来源。进行了(1,2- 13 C 2 )
乙酸钠喂养实验,以研究有利于非酶促环化步骤的聚酮化合物5-羟基-2-甲基-4-苯并二氢
吡喃酮的
生物合成。