Cyathenosin A, a spiropyranosyl derivative of protocatechuic acid from Cyathea phalerata

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• 作者：Moacir Geraldo Pizzolatti ; Ines Maria Costa Brighente ; Adailton Joã ; o Bortoluzzi ; Jan Schripsema ; Luiz Gonzaga Verdi
• 关键词：Cyathea phalerata ; Cyatheacae ; Cyathenosin A ; Spiro-orthoester pyranosidic ; Spirocyclic compound ; Cyathenoside A
• 刊名：Phytochemistry
• 出版年：2007
• 出版时间：May 2007
• 年：2007
• 卷：68
• 期：9
• 页码：1327-1330
• 全文大小：154 K

文摘

Cyathenosin A, a spiropyranosyl derivative of protocatechuic acid was isolated from the stem pith of Cyathea phalerata Mart. Its structure was determined by MS, 1D and 2D NMR spectroscopic analyses and confirmed by single crystal X-ray analysis. Cyathenosin A is the first example of a naturally occurring compound containing a spirocyclic orthoester pyranosidic structure.