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AIM: To look for new principles of high activity and low toxicity from the flowers of Aconitum kusnezoffii Reichb. METHODS: Various chramatographic techniques were used to separate and purify the constituents. Their physical and chemical properties and spectral data were measured for structure elucidation. RESULTS: Seven compounds were isolated from the benzene extract of the flowers of Aconitum kusnezoffii Reichb, a medicinal plant of Ranunculaceae family. On the basis of spectral data (IR, MS, 1HNMR , 13 CNMR and DEPT) and comparisons with known compounds, their structures were identified as hypaconitine (I), 3 acetylaconitine (II), 3 acetylmesaconitine (III), 3 acetylaconifine (IV), mesaconitine (V), beiwutine (VI) and lepenine (VII). CONCLUSION: Compounds III and IV were new natural products. Compounds II～IV showed analgesic and antiinflammatory activities.
AIM: To look for new principles of high activity and low toxicity from the flowers of Aconitum kusnezoffii Reichb. METHODS: Various chramatographic techniques were used to separate and purify the constituents. Their physical and chemical properties and spectral data were measured for structure elucidation. RESULTS : Seven compounds were isolated from the benzene extract of the flowers of Aconitum kusnezoffii Reichb, a medicinal plant of Ranunculaceae family. On the basis of spectral data (IR, MS, 1HNMR, 13 CNMR and DEPT) and comparisons with known compounds, their structures Were identified as hypaconitine (I), 3 acetylaconitine (II), 3 acetylmesaconitine (III), 3 acetylaconifine (IV), mesaconitine (V), beiwutine (VI) and lepenine (VII). CONCLUSION: Compounds III and IV were new natural Products. Compounds II ~ IV showed analgesic and antiinflammatory activities.