Naturally Occurring 5-Lipoxygenase Inhibitors. VI. Structures of Ardisiaquinones D, E, and F from Ardisia sieboldii.
摘要:
新的 1,4-苯醌衍生物 Ardisiaquinones D (2)、E (4) 和 F (5) 以及已知的 ardisiaquinones A (1) 和 B (3) 已从 Ardisia sieboldii(Myrsinaceae)的叶子中分离出来,并被证明是 5-脂氧合酶抑制剂。它们的结构已通过光谱分析和化学降解得到阐明。报告了阿地西亚醌和阿地西亚醌 A 的一些衍生物对 5-脂氧合酶活性的抑制程度。
Novel 1,4-benzoquinone derivatives and benzene derivatives, and process for preparing the same
申请人:OTSUKA PHARMACEUTICAL CO., LTD.
公开号:EP0151995A2
公开(公告)日:1985-08-21
1,4-Benzoquinone derivatives and benzene derivatives having cerebral- and cardiac-blood flow improving activities and preventive activities of cerebral ischema with low toxicities, and thus are useful as activators for cardiac and cebrat metabolisms, curing agents for heart failure, cardiac and cerebral blood flow improving agents, as well as anti-allergic agents for slow reacting allergy (IV-type allergy).
The convergent synthesis of ardisiaquinones D (1), E (3) and F (4), isolated as 5-lipoxygenase inhibitors from Ardisia sieboldii, has been achieved efficiently by a cross-coupling reaction via an acetylene between two benzene units bearing appropriate functional groups readily derived from 2, 5-dimethoxy-1, 4-benzoquinone.
通过交叉耦合反应,在容易从 2,5-二甲氧基-1,4-苯醌衍生出的带有适当官能团的两个苯单元之间通过乙炔有效地合成了从西波胆蒿中分离出的 5-脂氧合酶抑制剂--西波胆蒿醌 D (1)、E (3) 和 F (4)。
Naturally Occurring 5-Lipoxygenase Inhibitors. VI. Structures of Ardisiaquinones D, E, and F from Ardisia sieboldii.
New 1, 4-benzoquinone derivatives, ardisiaquinones D (2), E (4), and F (5) along with the known ardisiaquinones A (1) and B (3) have been isolated from the leaves of Ardisia sieboldii (Myrsinaceae) and shown to be 5-lipoxygenase inhibitors. Their structures have been elucidated by spectroscopic analysis and chemical degradation. The degree of inhibition of 5-lipoxygenase activity by the ardisiaquinones and some derivatives of ardisiaquinone A is reported.
新的 1,4-苯醌衍生物 Ardisiaquinones D (2)、E (4) 和 F (5) 以及已知的 ardisiaquinones A (1) 和 B (3) 已从 Ardisia sieboldii(Myrsinaceae)的叶子中分离出来,并被证明是 5-脂氧合酶抑制剂。它们的结构已通过光谱分析和化学降解得到阐明。报告了阿地西亚醌和阿地西亚醌 A 的一些衍生物对 5-脂氧合酶活性的抑制程度。