Medicinal Foodstuffs. XX. Vasorelaxant Active Constituents from the Roots of Angelica furcijuga KITAGAWA: Structures of Hyuganins A, B, C, and D.
作者:Hisashi MATSUDA、Toshiyuki MURAKAMI、Norihisa NISHIDA、Tadashi KAGEURA、Masayuki YOSHIKAWA
DOI:10.1248/cpb.48.1429
日期:——
From the methanolic extract with vasorelaxant activity obtained from Angelica furcijuga Kitagawa, four new khellactone-type coumarins, hyuganins A, B, C, and D, were isolated together with twelve known coumarins, two known acetylenic compounds, and a known lignan. The structures of hyuganins A, B, C, and D were determined on the basis of chemical and physicochemical evidence. Nine principal coumarins
从北川当归获得的具有血管舒张活性的甲醇提取物中,分离出四种新的内酯类香豆素,hyuganins A,B,C和D,以及十二种已知的香豆素,两种已知的炔属化合物和一种已知的木脂素。Hyuganins A,B,C和D的结构是根据化学和物理化学证据确定的。九种主要香豆素(hyuganin A,异常蛋白,pteryxin,isopteryxin,isoepoxypteryxin,praerosides II和IV,apiosylskimmin,(R)-peucedanol 7-O-beta-D-glucopyranoside),两种炔属化合物[(--falcarinol和falcarinol)研究了相关化合物对高浓度K +(High K +)-和dl-去甲肾上腺素(NE)诱导的收缩的抑制活性。结果表明3'-和4' 酸内酯型香豆素的β-酰基对于High K +对收缩的抑制活性至关重要。Hyuganin