申请人:ZENECA LIMITED
公开号:EP0459702A1
公开(公告)日:1991-12-04
The invention concerns novel, pharmaceutically useful compounds of formula I in which Q is a 5-membered heteroaryl optionally bearing 1 or 2 substituents independently selected from (1-4C)alkyl and halogeno ; R1 is hydrogen, (1-6C)alkyl, or (1-4C)alkanoyl ; R2 (when not as hereinbelow defined together with X) is hydrogen, (3-12C)cycloalkyl, (3-6C)alkenyl, phenyl(3-6C)alkenyl, tetrafluorophenyl, pentafluorophenyl, 5- or 6-membered heteroaryl, optionally substituted (1-6C)alkyl or optionally substituted phenyl ; X is oxy, thio, sulphinyl, sulphonyl or an imino group of formula -NRa- in which Ra is hydrogen, (1-6C)alkyl or together with R2 and the adjacent nitrogen atom forms a 4 to 6-membered saturated heterocyclic ring ; and A is N or CT in which T is hydrogen or (1-4C)alkyl ; or a pharmaceutically acceptable salt thereof ; processes for the manufacture of the compounds and pharmaceutical compositions containing them. The compounds are useful as adenosine antagonists. The invention further provides novel intermediates useful in the manufacture of the compounds of formula I.
本发明涉及式 I 的新型药用化合物,其中 Q 是 5 元杂芳基,任选带有 1 或 2 个独立选自 (1-4C)烷基和卤素的取代基;R1 是氢、(1-6C)烷基或 (1-4C)alkanoyl ;R2(当不与 X 一起定义时)是氢、(3-12C)环烷基、(3-6C)烯基、苯基(3-6C)烯基、四氟苯基、五氟苯基、5 或 6 元杂芳基、任选取代的(1-6C)烷基或任选取代的苯基;X 是氧、硫代、亚砜基、磺酰基或式 -NRa- 的亚氨基,其中 Ra 是氢、(1-6C)烷基或与 R2 和邻近的氮原子一起形成 4 至 6 元饱和杂环;以及 A 是 N 或 CT,其中 T 是氢或 (1-4C)烷基;或其药学上可接受的盐;化合物的制造工艺和含有这些化合物的药物组合物。这些化合物可用作腺苷拮抗剂。本发明进一步提供了用于制造式 I 化合物的新型中间体。