香泊氏孔菌子实体化学成分研究

Chemical Constituents from Fruiting Bodies of the Basidiomycete Postia balsamea

目的:研究香泊氏孔菌子实体的化学成分。方法:采用硅胶柱层析分离纯化化合物,利用波谱方法鉴定化合物结构。结果:从香泊氏孔菌子实体中分离得到7个化合物,分别鉴定为:白桦脂醇(1)、(22E,24R)-5α,8α-过氧麦角甾-6,22-二烯-3β-醇(2)、(22E,24R)-5α,8α-过氧麦角甾-6,9(11),22-三烯-3β-醇(3)、(22E,24R)-麦角甾-7,22-二烯-3β-醇(4)、白桦脂酸(5)、(22E,24R)-麦角甾-5,7,22-三烯-3β-醇(6)和硬脂酸(7)。结论:所有化合物均为从该菌种子实体中首次分离得到。

Objective： To study the chemical constituents from fruiting bodies of Postia balsamea. Methods： The fruiting bodies of Postia balsamea was extracted,the compounds were isolated by silica gel column chromatography. The structures were elucidated by the spectral analysis. Results： Seven compounds were isolated and identified as betulin（ 1）,（ 22 E,24R）-5α,8α-epidioxy-ergosta-6,22-dien-3β-ol（ 2）,（ 22 E,24R）-5α,8α-epidioxy-ergosta-6,9（ 11）,22-trien-3β-ol（ 3）,（ 22 E,24R）-ergosta-7,22-dien-3β-ol（ 4）,betulinic acid（ 5）,（ 22 E,24R）-ergosta-5,7,22-trien-3β-ol（ 6） and stearic acid（ 7）. Conclusion： All the compounds are isolated from this species for the first time.