The phytochemical investigation of the aerial parts of Pteris morii Masamune led to the isolation of a new pterosin derivative pteririene A (1), together with seven pterosin sesquiterpenes (2–8). Structure elucidation of these compounds were performed on the basis of NMR spectral data and MS. All compounds were isolated from the P. morii for the first time. The chemotaxonomic significance of the isolates was also discussed.

中文翻译：

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从Pterosin衍生物凤尾森井正宗

对桑蚕翼龙（Pteris morii Masamune）空中部分的植物化学研究导致分离出一种新的蝶呤衍生物蝶啶A（1），以及七种倍半萜烯（2-8）。这些化合物的结构阐明是根据NMR光谱数据和MS进行的。所有化合物均为首次从桑蚕中分离得到。还讨论了分离株的化学分类学意义。