Abstract A chemical investigation of the extract of the marine-sponge-associated fungus P. colombiensis resulted in the isolation of eight chlorinated benzophenone derivatives, named, pestalone (1), pestalachlorides A-C, E, and F (2-6), pestalalactone (7), and pestalalactone atropisomer (8). The structures of these compounds were identified by spectroscopic analysis (MS, 1D/2D NMR) and comparison with the previously reported data . Compounds (1–8) were isolated from this species for the first time. Moreover, compounds (1–8) had not been reported from any other genus , and the chemotaxonomic signifcance of eight chlorinated benzophenone derivatives (1–8) was also discussed.

中文翻译：

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氯化二苯甲酮衍生物作为 Pestalotiopsis 属的化学分类标记

摘要 对海洋海绵相关真菌 P. colombiensis 的提取物进行化学研究，分离出了八种氯化二苯甲酮衍生物，命名为：pesalone (1)、pesalachlorides AC、E 和 F (2-6)、pesalalactone ( 7) 和杵内酯阻转异构体 (8)。这些化合物的结构通过光谱分析（MS、1D/2D NMR）并与先前报道的数据进行比较来鉴定。化合物（1-8）是首次从该物种中分离得到。此外，化合物（1-8）尚未从任何其他属中报道，并且还讨论了八种氯化二苯甲酮衍生物（1-8）的化学分类学意义。