申请人:Gruppo Lepetit S.p.A.
公开号:US04075241A1
公开(公告)日:1978-02-21
The compounds 2-Aryl-3-amino-1-butanol derivatives of the formula ##STR1## wherein R represents hydrogen or acyl; R.sup.1 and R.sup.2 each independently represents hydrogen, phenyl lower alkyl, or lower alkoxy substituted phenyl lower alkyl, or both R.sup.1 and R.sup.2 are lower alkyl; and their pharmaceutically acceptable acid salts. The compounds are crystalline solids or liquids which, having two asymmetry centers, can be obtained in their stereoisomeric forms as racemic mixtures or in their optically active forms. The compounds have cardiovascular activity as coronary dilators. The compounds can be prepared by reacting an .alpha.-arylcrotonate with ammonia or with an amine followed by hydrogenation of the carbalkoxy group to give the corresponding butanol. The butanols are acylated in usual ways to give the compounds of formula (I) wherein R represents an acyl group.
化合物2-Aryl-3-amino-1-butanol的衍生物的通式为##STR1##其中R代表氢或酰基;R.sup.1和R.sup.2各自独立地代表氢、苯基低烷基或低烷氧基取代的苯基低烷基,或者R.sup.1和R.sup.2都是低烷基;以及它们的药学上可接受的酸盐。这些化合物是结晶固体或液体,具有两个不对称中心,可以以外消旋混合物或光学活性形式获得它们的立体异构体形式。这些化合物具有心血管活性作为冠状动脉扩张剂。这些化合物可以通过将α-芳基丙烯酸酯与氨或胺反应,然后氢化羧酸烷基基团得到相应的丁醇来制备。通常方法可以酰化丁醇以给出式(I)中R代表酰基的化合物。