書誌事項
- 公開日
- 1992-02-05
- 権利情報
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- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
-
- 10.1002/hlca.19920750122
- 公開者
- Wiley
この論文をさがす
説明
<jats:title>Abstract</jats:title><jats:p>From a MeOH extra of <jats:italic>Psiadia trinervia</jats:italic>, seven phenolic compounds were isolated by gel filtration and reversed‐phase chromatography. Six of them are known compounds, namely 3,4‐di‐<jats:italic>O</jats:italic>‐caffeoylquinic acid (<jats:bold>2</jats:bold>), 3,5‐di‐<jats:italic>O</jats:italic>‐caffeoylquinic acid (<jats:bold>3</jats:bold>), caffeic acid, and three 3‐methoxyflavonoids. Compound <jats:bold>1</jats:bold> is a 3,4‐di‐<jats:italic>O</jats:italic>‐caffeoyl derviative of (1<jats:italic>S</jats:italic>,3<jats:italic>R</jats:italic>,4<jats:italic>R</jats:italic>,5<jats:italic>R</jats:italic>)‐1,3,4, 5‐tetrahydroxycyclohexanecarboxylic acid, a novel steroisomer of (−)‐quinic acid. Following hydrolytic treatment of the MeOH extract, ethyl 3‐<jats:italic>O</jats:italic>‐caffeoylquinate (<jats:bold>4</jats:bold>), ethyl 3,4‐di‐<jats:italic>O</jats:italic>‐caffeoylquinate (<jats:bold>5</jats:bold>), and ethyl 3,5‐<jats:italic>O</jats:italic>‐caffeoylquinate (<jats:bold>6</jats:bold>) were isolated. The latter three compounds are artifacts. The configuration of <jats:bold>1‐3</jats:bold> was established by NMR and CD (exciton chirality method).</jats:p>
収録刊行物
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- Helvetica Chimica Acta
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Helvetica Chimica Acta 75 (1), 269-275, 1992-02-05
Wiley
