Synthesis and structure confirmation of the complex flavonoids in Pityrogramma calomelanos.
作者:Fujio ASAI、Munekazu IINUMA、Toshiyuki TANAKA、Mizuo MIZUNO
DOI:10.1248/cpb.38.1079
日期:——
By unambiguous synthesis, the structures of two complex flavonoids in the farinose exudate of Pityrogramma calomelanos were established to be 8-(3-phenylpropionyl)-5, 7-dihydroxyneoflavanone [8-(3-phenylpropionyl)-5, 7-dihydroxy-4-phenylchroman-2-one] (1) and 8-(2-carboxy-1-phenylethyl)-5, 7-dihydroxyflavone δ-lactone (3).
通过明确的合成,确定了 Pityrogramma calomelanos 的远志糖渗出物中的两种复杂黄酮类化合物的结构为 8-(3-苯基丙酰基)-5、7-二羟基新黄烷酮[8-(3-苯基丙酰基)-5, 7-二羟基-4-苯基色满-2-酮](1)和 8-(2-羧基-1-苯基乙基)-5, 7-二羟基黄酮 δ-内酯(3)。