The dihydro-isocoumarin derivatives 1–2 were isolated from the marine-derived fungus Phoma sp. 135. Structural elucidation was achieved through extensive spectroscopic evaluation including 1D- and 2D-NMR, accurate mass measurements, and single crystal X-ray diffraction analysis. We report herein the structure and absolute configuration of the known compound 1 using X-ray diffraction, and the structural elucidation of the new dihydro-isocoumarin derivative 2.

中文翻译：

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来自海洋真菌Phoma sp。的异香豆素衍生物。135

从海生真菌Phoma sp。中分离出二氢-异香豆素衍生物1-2。135.通过广泛的光谱评估，包括一维和二维核磁共振，准确的质量测量以及单晶X射线衍射分析，实现了结构解析。我们在此报告使用X射线衍射的已知化合物1的结构和绝对构型，以及新的二氢异香豆素衍生物2的结构解析。