阿卡宁类化合物的质谱研究和O-β-乙酰氧基异戊酰基紫草素的结构
MASS SPECTROMETRIC STUDIES ON ALKANNINS
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摘要: 本文报告阿卡宁类化合物的质谱裂解方式和质谱特征。根据这些特征,单独地对新化合物O-β-乙酰氧基异戊酰基紫草素(5)提出了完整的结构。并经NMR数据证实。Abstract: This paper reports the mass spectrometrical fragmentations and the characteristics of alkannin compounds. The complete structure of a new compound, O-β-acetoxyisovalerylshikonin (5), isolated from Macrotomia euchroma (Royle) Pauls is proposed solely by the mass spectra and confirmed by NMR data.
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