Abstract
Three diterpenoid alkaloids, including an unreported compound, were isolated from the roots of Aconitum kusnezoffii Reichb. On the basis of spectral analysis, these three compounds were determined to be 1,15-dimethoxy-3-hydroxy-14-benzoyl-16-ketoneoline, benzoylaconine and aconitine.
Highlights
Aconitum kusnezoffii Reichb., belonging to the genus Aconitum L., is distributed in the Xinjiang, Sichuan and Jilin provinces of China
Recently there were some reports on flowers [1] and leaves [2] of this plant, roots of Aconitum kusnezoffii Reichb. had been long used in Traditional Chinese
The 13C-NMR and DEPT spectra of 1 revealed the presence of 32 carbons, which were assignable to a tertiary methyl group at δC 12.2 (C-2), an oxygenated methylene group at δC 76.3 (C-18), an oxygenated quaternary carbon at δC 77.5 (C-8), two quaternary carbons at δC 43.6 (C-4) and
Summary
Aconitum kusnezoffii Reichb., belonging to the genus Aconitum L., is distributed in the Xinjiang, Sichuan and Jilin provinces of China. Recently there were some reports on flowers [1] and leaves [2] of this plant, roots of Aconitum kusnezoffii Reichb. Diterpenoid alkaloids [3,4] and polysaccharide [5] have been isolated from its roots to date. Diterpenoid alkaloids extracted from the genus Aconitum L. have various pharmacological properties [6,7,8,9,10]. In the search for biologically active alkaloids from the roots of Aconitum kusnezoffii Reichb., a detailed study was carried out. 1,15-dimethoxy-3-hydroxy-14-benzoyl-16-ketoneoline, along with two known diterpenoid alkaloids, benzoylaconine and aconitine. IR, and NMR spectral data, and the known ones were identified by comparing their NMR data with those in the literature [3]
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