Studies on the Diterpenoid Constituents of Rabdosia ternifolia : Structural Elucidation of New Diterpenoids, Rabdoternins A, B and C

Yoshio TAKEDA; Ko-ichi TAKEDA; Tetsuro FUJITA; Han-Dong SUN; Yoshinori MINAMI

doi:10.1248/cpb.38.439

Yoshio TAKEDA, Ko-ichi TAKEDA, Tetsuro FUJITA, Han-Dong SUN, Yoshinori MINAMI

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Keywords: Rabdosia ternifolia, Labiatae, rabdoternin A, rabdoternin B, rabdoternin C, diterpenoid, ent-7β, 20-epoxy-kaur-16-en-7α-ol, structure elucidation

JOURNAL FREE ACCESS

1990 Volume 38 Issue 2 Pages 439-442

DOI https://doi.org/10.1248/cpb.38.439

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Abstract

Three new diterpenoids, rabdoternins A (1), B (2) and C (3) have been isolated from the bried leaves of Rabdosia ternifolia (D. DON) HARA. Their structures have been elucidated on the basis of spectroscopic and chemical evidence.

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