申请人:Gruenenthal GmbH
公开号:US05202349A1
公开(公告)日:1993-04-13
Substituted phenylacetylenes of the formula ##STR1## wherein one of the groups R.sub.1 is a hydrogen atom and the other represents the group of the formula ##STR2## in which R.sub.3 is hydrogen, methyl or ethyl and R.sub.4 is a methyl or an amino group and wherein R.sub.2 represents mono- or binuclear aromatic or heterocyclic residues containing sulfur, nitrogen or oxygen as hetero atoms and optionally being substituted by 1 to 3 substituents as defined, which specifically inhibit 5-lipoxygenase and are useful in pharmaceutical compositions for prophylaxis and treatment of diseases due to the action of leukotrienes. The compounds may be prepared by reacting a compound of the formula ##STR3## wherein R.sub.2 has the same meaning as above and one of the groups R.sub.7 is a hydrogen atom and the other represents the group of the formula --COR.sub.3, with hydroxylamine to form the oxime which then is reduced to the corresponding hydroxylamine compound into which the group of the formula --COR.sub.4 is introduced.
式子为 ##STR1## 中,其中R.sub.1的一个基团为氢原子,另一个代表公式 ##STR2## 中的基团,其中R.sub.3为氢、甲基或乙基,R.sub.4为甲基或氨基,R.sub.2代表含有硫、氮或氧等杂原子的单核或双核芳香或杂环残基,并且可以被1至3个定义的取代基取代,这些化合物特别抑制5-脂氧合酶,并且可用于预防和治疗由白三烯作用引起的疾病的制药组合物中。这些化合物可以通过将化合物 ##STR3## 与羟胺反应形成肟,然后还原为相应的羟胺化合物,其中引入了公式 --COR.sub.4 的基团来制备。