申请人:Yuhan Corporation
公开号:US05750531A1
公开(公告)日:1998-05-12
The present invention relates to novel pyrimidine derivatives of the formulae (I-1) and (I-2) and pharmaceutically acceptable salts thereof which possess an excellent anti-secretory activity, pharmaceutical compositions containing same as an active ingredient, their novel intermediates, and processes for the preparation thereof: ##STR1## wherein: R.sub.4 and R.sub.5, which may be the same or different, are independently hydrogen or a C.sub.1 -C.sub.3 alkyl group, or jointly form a cyclopentyl or cyclohexyl ring; A is a group of formula(II): ##STR2## wherein R.sub.1 and R.sub.2 are, independently of each other, hydrogen or a C.sub.1 -C.sub.3 alkyl group, and R.sub.3 is hydrogen, a C.sub.1 -C.sub.3 alkyl group or a halogen; and B is 1-(substituted)-1,2,3,4-tetrahydroisoquinolin-2-yl of formula (III-1) or 7-(substituted)-4,5,6,7-tetrahydrothieno\x9b2,3-c!pyridin-6-yl of formula (III-2) ##STR3## wherein R.sub.6 is hydrogen or a C.sub.1 -C.sub.3 alkyl group.
本发明涉及式(I-1)和式(I-2)的新杂环衍生物以及可药用的盐,这些衍生物具有优异的抗分泌活性,包含它们作为活性成分的药物组合物,它们的新中间体,以及它们的制备方法:##STR1## 其中:R.sub.4 和 R.sub.5 可相同或不同,独立地是氢或C.sub.1 -C.sub.3 烷基,或者共同形成环戊基或环己基;A是式(II)的基团:##STR2## 其中R.sub.1 和 R.sub.2独立地是氢或C.sub.1 -C.sub.3 烷基,R.sub.3 是氢、C.sub.1 -C.sub.3 烷基或卤素;B是式(III-1)的1-(取代)-1,2,3,4-四氢异喹啉-2-基或式(III-2)的7-(取代)-4,5,6,7-四氢噻吩并[2,3-c]吡啶-6-基:##STR3## 其中R.sub.6 是氢或C.sub.1 -C.sub.3 烷基。