Diterpenoid Constituents of Rabdosia inflexa : Structure Elucidation of Two New Diterpenoids, Inflexanins A and B

YOSHIO TAKEDA; TERUYOSHI ICHIHARA; TETSURO FUJITA; KIYOSHI KIDA; AKIRA UENO

doi:10.1248/cpb.35.3490

Diterpenoid Constituents of Rabdosia inflexa : Structure Elucidation of Two New Diterpenoids, Inflexanins A and B

YOSHIO TAKEDA, TERUYOSHI ICHIHARA, TETSURO FUJITA, KIYOSHI KIDA, AKIRA UENO

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Keywords: Rabdosia inflexa, inflexanin A, inflexanin B, 15-oxo-ent-kaurenoid, inflexin, inflexinol, structure elucidation

JOURNAL FREE ACCESS

1987 Volume 35 Issue 8 Pages 3490-3493

DOI https://doi.org/10.1248/cpb.35.3490

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Abstract

Two new diterpenoids, inflexanins A and B, have been isolated from the aerial part of Rabdosia inflexa (THUNB.) HARA together with the known compounds, inflexin (3) and inflexinol (4). The structures of the new diterpenoids have been elucidated as 1 and 2 on the basis of spectral and chemical evidence.

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