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Three new C19-diterpenoid alkaloids, nagarumines A-C (1-3), together two known alkaloids, deoxyaconitine (4) and N-deethyldeoxyaconitine (5), were isolated from the roots of Aconitum nagarum. The structures of the new compounds… Click to show full abstract
Three new C19-diterpenoid alkaloids, nagarumines A-C (1-3), together two known alkaloids, deoxyaconitine (4) and N-deethyldeoxyaconitine (5), were isolated from the roots of Aconitum nagarum. The structures of the new compounds were elucidated by spectral methods such as 1D and 2D (1H-1H COSY, HMQC, and HMBC) NMR spectroscopy, as well as high resolution mass spectrometry. The in vivo pharmacological studies revealed that nagarumine C (3) possessed comparable antinociceptive activity (ED50 = 76.0 μmol/kg) with the positive control drugs aspirin and acetaminophen.
Journal Title: Journal of Asian natural products research
Year Published: 2022
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