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Note | Regular issue | Vol 65, No. 2, 2005, pp.365-370
Published online, 10th December, 2004
DOI: 10.3987/COM-04-10237
Structural Revision of Hemsleyadine and New Alkaloids Hemsleyanines A, B from Aconitum hemsleyanium var. circinacum

Feng Gao and Feng-Peng Wang*

*Department of Chemistry of Medicinal Natural Products, West China College of Pharmacy, Sichuan University, No. 17, Duan 3, Remin Nan Road, Chengdu 610041, China

Abstract

Study on the phytochemistry of Aconitum hemsleyanium var. circinacum led to isolate two new C19-diterpenoid alkaloids, hemsleyanines A (6) and B (7) together with six known alkaloids, yunaconitine, talatisamine, hemsleyadine, hemsleyasine, hemsleyanidine and isohemsleyanidine. The structures of these alkaloids including new alkaloids hemsleynines A and B were established on the basis of spectral data (1H- and 13C- NMR, 2D NMR, HRMS) and X-Ray analysis.