申请人:Biorex Research & Development Co.
公开号:US06002002A1
公开(公告)日:1999-12-14
The present invention provides novel hydroxylamine derivatives represented by the general formula: wherein: X is O, --NH, or a group of formula NR', wherein R and R' are independently selected from alkyl, cycloalkyl, phenylalkyl, phenyl optionally substituted with halo, haloalkyl, alkyl, alkoxy or nitro; and a N-containing heterocyclic ring; R.sup.1 is H or alkanoyl, R.sup.2 is H or hydroxy optionally acylated with alkanoyl, and R.sup.3 is a group of the formula --NR.sup.4 R.sup.5 wherein R.sup.4 and R.sup.5 are independently selected from H, alkyl, and a group of the formula --CO--NH--R wherein R is as defined above, or wherein R.sup.4 and R.sup.5 when taken together form a 5- to 7-membered heterocyclic ring which may optionally contain one additional hetero atom selected from nitrogen, oxygen and sulfur and which is optionally substituted with alkyl or phenylalkyl. Also provided are pharmaceutically acceptable acid addition salts of the compounds defined above, as well as pharmaceutical compositions containing the compounds or their acid addition salts as active ingredients. The compounds of the invention have been shown to have anti-ischemic effects.
本发明提供了一种由通式表示的新型羟胺衍生物:其中:X为O、-NH,或者是一个由通式NR'表示的基团,其中R和R'分别独立地选自烷基、环烷基、苯基烷基、苯基(可选择地取代卤素、卤代烷基、烷基、烷氧基或硝基)和含氮杂环;R^1为H或烷酰基,R^2为H或羟基(可选择地酰化为烷酰基),R^3为由通式-NR^4R^5表示的基团,其中R^4和R^5独立地选自H、烷基,以及由通式-CO-NH-R表示的基团,其中R如上所定义,或者当R^4和R^5结合在一起形成一个5-至7-成员的杂环,该杂环可选择地含有一个额外的氮、氧和硫中选择的杂原子,并且可选择地取代为烷基或苯基烷基。此外,还提供了上述化合物的药学上可接受的酸盐,以及含有这些化合物或它们的酸盐盐作为活性成分的药物组合物。该发明的化合物已被证明具有抗缺血作用。