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Planta Med 1997; 63(6): 536-539
DOI: 10.1055/s-2006-957758
Papers
Natural Product Chemistry
© Georg Thieme Verlag Stuttgart · New York

Studies on the Constituents of Roots of Scutellaria planipes

Yong-Yu Zhang1 , Yun-Zhen Guo1 , Hiroyuki Ageta2 , Yoshihiro Harigaya3 , Masayuki Onda3 , Kadsunori Hashimoto4 , Yukinobu Ikeya4 , Minoru Okada4 , Masao Maruno4
  • 1Shenyang Pharmaceutical University, Shenyang 110015, China
  • 2Showa College of Pharmaceutical Sciences, Machida, Tokyo 194, Japan
  • 3School of Pharmaceutical Sciences, Kitasato University, Tokyo 108, Japan
  • 4Tsumura Central Laboratories, Tsumura and Co., Ibaraki 300-11, Japan
Further Information

Publication History

1996

1997

Publication Date:
04 January 2007 (online)

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Abstract

From the roots of Scutellaria planipes (L.), three new flavonoids, 5,7,3′,6′-tetrahydroxy-6,8,2′-trimethoxyflavone (1), (2R,3R)-3,5,7,2′,5′-pentahydroxyflavanone (2) and 7,2′-dihydroxy-5-methoxyflavone (3) were isolated, together with ten known flavonoids, skullcapflavone I (4), wogonin (5), baicalein (6), norwogonin (7), viscidulin III (8), 5,7,2′,6′-tetrahydroxy-flavone (9), 3,5,7,2′,6′-pentahydroxyflavone (10), wogonin 7-O-β-D-glucuronide (11), baicalin (12), baicalein 7-O-β-D-glucopyranoside (13), and three phenethyl alcohol glycosides, acteoside (14), martynoside (15), and jionoside D (16). The structures were elucidated by spectroscopic methods.

Key words

Scutellaria planipes - Labiatae - 5,7,3′,6′-tetrahydroxy-6,8,2′-trimethoxyflavone - (2R,3R)-3,5,7,2′,5′-pentahydroxyflavanone - 7,2′-dihydroxy-5-methoxyflavone

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