A Rare Glutamine Derivative from the Flower Buds of Daylily

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• 作者：Takahiro Matsumoto ; Seikou Nakamura ; Tomoe Ohta ; Katsuyoshi Fujimoto ; Masayuki Yoshikawa ; Keiko Ogawa ; Hisashi Matsuda
• 刊名：Organic Letters
• 出版年：2014
• 出版时间：June 6, 2014
• 年：2014
• 卷：16
• 期：11
• 页码：3076-3078
• 全文大小：198K
• 年卷期：v.16,no.11(June 6, 2014)
• ISSN：1523-7052

文摘

A rare glutamine derivative, hemerocallisamine I (1), was isolated from the methanolic extract of the flower buds of daylily, together with a new pyrrole alkaloid hemerocallisamine II (2) and a new 纬-lactam derivative, hemerocallisamine III (3). The chemical structures of the new compounds were elucidated on the basis of chemical and physicochemical evidence. For hemerocallisamine I (1), the absolute configuration was determined by Mo鈥揔伪 X-ray crystallographic analysis. This is the first report of a glutamine derivative with a pyrrole ring from natural plants.