苦红菇化学成分的研究
CHEMICAL STUDIES 0N RUSSULA ROSACEA
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摘要: 从野生真菌苦红菇(Russula rosacea(Bull)Grrayem,Fr.)子实体酸性部分得到两个新的四环三萜酸化合物,经光谱(IR,1HNMR,13CNMR,MS)、尤其是二维核磁共振(13C-1HCOSY,COLOC,NOEDIFF)谱解析,确定其结构分别如Ⅰ和Ⅱ所示,Ⅰ命名为苦红菇酸A(rosaceaacidA),Ⅱ为苦红菇酸B(rosaceaacidB)。Abstract: Two new triterpenoids ,rosacea acid A(I) and B(II)with cucurbitacin skeletonhave been isolated from fungal Russula rosacea(Bull)Grray em,Fr.Their structures and stereochemis-try were elucidated as l and II on the basis of spectroscopic analysis(IR, FAB-MS,EI-MS, 1HNMR,13CNMR,13C-1H COSY, COLOC, NOEDIFF).
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