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Paper | Regular issue | Vol 34, No. 6, 1992, pp.1231-1238
Published online, 1st January, 1970
DOI: 10.3987/COM-92-6032
Studies on the Alkaloids from Aconitum contortum (II)

Kazuaki Niitsu,* Yukinobu Ikeya, Takao Katsuhara, Hiroshi Mitsuhashi, Liang Huiling, and Chen Siying

*Research Institute for Biology & Chemistry, TSUMURA & CO., 3586 Yoshiwara, Ami-machi, Inashiki-gun, Ibaraki 300-11, Japan


Three new diterpenoid alkaloids, contorine (1), contortine (2) and contorsine (3) were isolated from the roots of Aconitum contortum. Structures of these alkaloids were determined on the basis of spectral data and X-ray analyses.