Analogs of platelet activating factor. 8. Antagonists of PAF containing an aromatic ring linked to a pyridinium ring
摘要:
A series of platelet activating factor (PAF) antagonists containing a quaternary pyridinium ring connected through an amide, imide, or carbamate linkage to a substituted aromatic ring was prepared. Of these compounds, those containing a branched imide linkage of the form (CON-(COCH3)CH2, 37-51, and 59) generally showed excellent PAF antagonist properties in vitro. Structure-activity relationships within this series of compounds were studied extensively with respect to substituents and the position of substitution in both the aromatic and pyridinium rings. Several of these compounds (40 and 44) showed in vitro PAF antagonism at less than 0.1 muM and are as potent as CV-6209, the most potent PAF antagonist reported in the literature. Less active PAF antagonists were those bearing simple amide linkages (20-23, 27-29, and 31-35), linear imide linkages (62-63), or carbamate linkages (66 and 68), between the two aromatic rings. A number of our PAF antagonists were tested in vivo in mice and rabbits for their ability to protect these animals against a lethal injection of PAF. Those antagonists that are particularly potent (IC50 <0.1 muM) provide excellent protection against an LD97 dose of PAF in rabbits. The relationships between structure and activity in vitro and in vivo are presented and compared to literature standards.
Pyridinium compounds which are useful as antagonists of platelet
申请人:American Cyanamid Company
公开号:US05208247A1
公开(公告)日:1993-05-04
The invention is aryl, amide, imide and carbamate pyridine antagonists of platelet activating factor.
这项发明是关于芳基、酰胺、亚酰胺和氨基甲酸酯吡啶对血小板活化因子的拮抗剂。
Aryl pyridinium compounds which are useful in treating shock
申请人:American Cyanamid Company
公开号:US05328921A1
公开(公告)日:1994-07-12
The invention is aryl, amide, imide and carbamate pyridine antagonists of platelet activating factor.
这项发明是关于芳基、酰胺、亚酰胺和氨基甲酸酯吡啶类抗血小板活化因子拮抗剂。
Aryl, amide, imide, and carbamate pyridine antagonists of platelet activating factor
申请人:AMERICAN CYANAMID COMPANY
公开号:EP0530444A1
公开(公告)日:1993-03-10
Pyridine derivatives of the general formula
wherein:
X is a divalent radical of:
are PAF antagonists. Processes for their preparation and pharmaceutical compositions containing them are also included.
通式如下的吡啶衍生物
其中
X 是下列物质的二价基
是 PAF 拮抗剂。它们的制备方法和含有它们的药物组合物也包括在内。