Structure Elucidation of Inflexarabdonins G and H: Two New Diterpenoids from Rabdosia inflexa

Yoshio Takeda; Teruyoshi Ichihara; Kazuo Yamasaki; Hideaki Otsuka

doi:10.1055/s-2006-960957

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Planta Med 1990; 56(3): 281-283
DOI: 10.1055/s-2006-960957

Paper

Structure Elucidation of Inflexarabdonins G and H: Two New Diterpenoids from Rabdosia inflexa

Yoshio Takeda¹ , Teruyoshi Ichihara¹ , Kazuo Yamasaki² , Hideaki Otsuka²

¹Faculty of Pharmaceutical Sciences, The University of Tokushima, Tokushima 770, Japan
²Institute of Pharmaceutical Sciences, Hiroshima University School of Medicine, Minami-ku, Hiroshima 734, Japan

Weitere Informationen

Publikationsverlauf

1989

Publikationsdatum:
05. Januar 2007 (online)

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Abstract

From the dried aerial parts of Rabdosia inflexa, two new diterpenoids, named inflexarabdonin G and inflexarabdonin H were isolated and the structures were elucidated as ent-1β,3α,11α-trihydroxy-kaur-16-en-15-one 3,11-diacetate and ent-1β,3α,11α-trihydroxy-kaur-16-ene-6,15-dione 1,3-diacetate, respectively, on the basis of spectroscopic and chemical evidence.

Key words

Rabdosia inflexa - Labiatae - inflexarabdonin G - inflexarabdonin H - ent-kaurenoid - structure elucidation

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