Compounds of the general formula :
wherein X is a group of the formula:
m is2 or3; n is an integeroffrom 1 to 4;
and R is a 5-membered heterocyclic group containing as heteroatoms a nitrogen atom and an additional oxygen or sulphur atom or up to three further nitrogen atoms; or a 6-membered heterocyclic group containing one or two nitrogen atoms;
and the pharmaceutically acceptable acid addition salts thereof, are able to selectively inhibit the action of the thromboxane synthetase enzyme without significantly inhibiting the action of the prostacycline synthetase or cyclooxygenase enzymes and are thus useful in the treatment of ischaemic heart disease, stroke, transient ischaemic attack, thrombosis, migraine and the vascular complications of diabetes
通式......的化合物
其中 X 是式中的基团:
m 为 2 或 3;n 为 1 至 4 的整数;
和 R 是一个 5 元杂环基团,杂原子包含一个
氮原子和一个
氧原子或
硫原子或最多三个
氮原子;或一个 6 元杂环基团,杂原子包含一个或两个
氮原子;
及其药学上可接受的酸加成盐,能够选择性地抑制血栓素
合成酶的作用,而不显著抑制
前列环素合成酶或环
氧化酶的作用,因此可用于治疗缺血性心脏病、中风、短暂性脑缺血发作、血栓形成、偏头痛和糖尿病的血管并发症。