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中文摘要：
目的：研究担子菌灰号角（Craterellus cornucopioides）的活性成分。方法：运用硅胶层析柱、反相Rp-18、半制备薄层层析和凝胶柱层析对担子菌灰号角发酵液进行分离纯化,借助光谱学手段鉴定其结构。结果：从担子菌灰号角发酵液中分离得到3个新的酮酯,鉴定为4-oxohex-1,6-diyl diacetate（1）,4-oxohex-5-enyl acetate（2）,6-hydroxy-4-oxohexyl acetate（3）。结论：化合物1～3为新化合物。
英文摘要：
AIM：To investigate the bioactive constituents from cultures of the basidiomycete Craterellus cornucopioides. METHODS：Compounds were separated and purified by silica gel,Rp-18,Sephadex LH-20 column chromatography.Their structures were elucidated on the basis of extensive spectroscopic analysis including IR,MS,1D and 2D NMR experiments.RESULTS：Three new keto esters,4-oxohex-1,6-diyl diacetate（1）,4-oxohex-5-enyl acetate（2）and 6-hydroxy-4-oxohexyl acetate（3）,were isolated from cultures of the basidiomycete C.cornucopioides.CONCLUSION：Compounds 1-3 are new keto esters.
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