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《ACTA PHARMACEUTICA SINICA》 1994-05
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STRUCTURE IDENTIFICATION OF A NEW COMPONENT FROM STEMS AND LEAVES OF TAXUSYUNNANENSIS

C Rao,JY Zhou,WM Chen,Y Lu and QT zheng(Institute of Materia MedicA,Chinese Academy of Medical Sciences and Peking Union Medical College,Beijing 100050)  
A new compound ,named taxayuntin, was isolated from the stems and leaves ofTaxus yunnanensis Cheng et L.K.Fu. Its structure was deduced by spectroscopic methods(1H and 13CNMR,1H-1H COSY,13C-1H COSY,13C-1H COLOC)and X-ray diffraction, as a tetracyclic taxanewith 5/7/6 membered rings and an oxetane ring fused at positions 4一5.
【CateGory Index】: R282.710.3
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