Diterpenoid alkaloids from Aconitum episcopale Levl.
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Abstract
The diterpenoid alkaloids of Aconitum episcopale Levl.were studied and six diterpenoid alkaloids were isolated by silica column chromatography.The structures of theses compounds were elucidated as chasmanineⅠ,talatizamine Ⅱ,crassicauline A Ⅲ,foresaconitine Ⅳ,acoforestinine Ⅴ,yunaconitine Ⅵ by spectral methods.Compounds Ⅰ,Ⅲ,Ⅳ,Ⅴ were isolated from this plant for the first time.
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