深红虫草次级代谢产物的分离与鉴定
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篇名: 深红虫草次级代谢产物的分离与鉴定
TITLE:
摘要: 目的:对深红虫草的次级谢产物进行分离、鉴定,为进一步发掘深红虫草活性物质和丰富虫草类真菌天然产物库提供参考。方法:采用正相硅胶柱层析、C18反相硅胶柱层析、Sephadex LH-20凝胶柱层析、薄层色谱等色谱技术对深红虫草发酵液中的化合物进行分离;通过核磁共振氢谱、核磁共振碳谱和质谱分析对分离的化合物进行结构鉴定。结果:从深红虫草发酵液的乙酸乙酯萃取部分共分离得到6个化合物,分别鉴定为5-甲基-1,3-苯二酚(化合物1)、4-hydroxy-17R-methylincisterol(化合物2)、5α,8α- 氧桥-(22E,24R)-麦角甾-6,22-二烯-3β-醇(化合物3)、3β,5α,6β-三羟基-(22E,24R)-麦角甾-7,22-二烯(化合物4)、尿嘧啶核苷(化合物5)、卵孢菌素(化合物6)。结论:本研究从该属真菌中分离得到了6个化合物,其中化合物1和化合物2为首次分离得到。
ABSTRACT: OBJECTIVE: To isolate and identify the secondary metabolites of Cordyceps cardinalis for providing reference for the further exploration of the active substance of C. cardinalis and the natural product library of Cordyceps. METHODS: The compounds from C. cardinalis fermentation broth were isolated by silica gel column chromatography, C18 reverse phase silica gel chromatography, Sephadex LH-20 gel column chromatography, TLC and so on. The structures of isolated compound were identified by 1H-NMR, 13C-NMR and MS spectra. RESULTS: Six compounds were isolated from the ethyl acetate extract of C. cardinalis fermentation broth as 5-methyl-1,3-benzenediol (compound 1), 4-hydroxy-17R-methylincisterol (compound 2), 5α, 8α-epidioxy-(22E,24R)-ergosta-6,22-dien-3β-ol (compound 3), 3β,5α,6β-trihydroxy-(22E,24R)-ergosta-7,22-dien (compound 4), uridine (compound 5), oosporein (compound 6). CONCLUSIONS: Six compounds are isolated from C. cardinalis strain, among which compound 1 and compound 2 are isolated from the genus Cordyceps for the first time.
期刊: 2018年第29卷第3期
作者: 卢梦梦,李义勇,刘洪新,郝再彬,章卫民
AUTHORS: LU Mengmeng,LI Yiyong,LIU Hongxin,HAO Zaibin,ZHANG Weimin
关键字: 深红虫草;次级代谢产物;分离;鉴定
KEYWORDS: Cordyceps cardinalis; Secondary metabolite; Isolation; Identification
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