The Structural Transformation of Gardenoside and Its Related Iridoid Compounds by Acid and β-Glucosidase

Masanori Miyagoshi; Sakae Amagaya; Yukio Ogihara

doi:10.1055/s-2006-962773

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Planta Med 1987; 53(5): 462-464
DOI: 10.1055/s-2006-962773

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The Structural Transformation of Gardenoside and Its Related Iridoid Compounds by Acid and β-Glucosidase

Masanori Miyagoshi, Sakae Amagaya, Yukio Ogihara

Faculty of Pharmaceutical Sciences, Nagoya City University, 3-1, Tanabe-dori, Mizuho-ku, Nagoya 467, Japan.

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Publication History

1986

Publication Date:
24 January 2007 (online)

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Abstract

In the course of studies on the metabolism of iridoid compounds, three new compounds derived from 6α-hydroxygeniposide and 6β-hydroxygeniposide, obtained from gardenoside by the hydrochloric acid treatment, were isolated after the hydrolysis with β-glucosidase. The aglycone of 6β-hydroxygeniposide was elucidated as 6β-hydroxygenipin. On the other hand, the aglycones of 6α-hydroxygeniposide were identified as the mixture of stereoisomers, 6α-hydroxygenipin and 6α-hydroxy-1-epi-genipin.

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