申请人:Kawano Yoshikazu
公开号:US20140031342A1
公开(公告)日:2014-01-30
The present invention provides a novel 6,7-dihydroimidazo[2,1-b][1,3]oxazine compound that has excellent bactericidal action against tubercle bacilli, multidrug-resistant tubercle bacilli, and atypical acid-fast bacilli. Specifically, the present invention provides a compound represented by Formula (1):
or a salt thereof,
wherein R
1
represents tetrahydroisoquinolyl, tetrahydroquinolyl, tetrahydrobenzoazepinyl, benzoxazolyl, benzothiazolyl, indolyl, isoindolinyl, naphthyl, quinolyl, phenyl, biphenylyl, or pyridyl, these groups being optionally substituted, the phenyl, biphenylyl, and pyridyl represented by R
1
each being substituted directly or via a linker with at least one group selected from the group consisting of tetrahydropyridyl, diazepanyl, diazabicycloheptanyl, tetrahydrotriazolopyrazinyl, tetrahydroimidazopyrazinyl, azabicyclooctanyl, oxazolyl, piperazinyl, piperidyl, thiazolyl, and the like, each of these groups being optionally substituted; and R
2
represents hydrogen or lower alkyl. The present invention further provides a pharmaceutical composition containing the above.
本发明提供了一种新型的6,7-二氢咪唑[2,1-b][1,3]噁嗪化合物,该化合物对结核杆菌、多重耐药结核杆菌和非典型酸杆菌具有优异的杀菌作用。具体而言,本发明提供了一个由式(1)表示的化合物或其盐,其中R1表示四氢异喹啉基、四氢喹啉基、四氢苯并氮杂环庚基、苯并噁唑基、苯并噻唑基、吲哚基、异吲哚啉基、萘基、喹啉基、苯基、联苯基或吡啶基,这些基团可以被替代,其中R1所表示的苯基、联苯基和吡啶基可以通过连接基直接或经过连接基与选自四氢吡啶基、二氮杂环庚基、二氮杂双环庚基、四氢三唑吡嗪基、四氢咪唑吡嗪基、氮杂双环辛基、噁唑基、哌嗪基、哌啶基、噻唑基等基团中的至少一个基团取代,其中这些基团可以被替代;而R2表示氢或低碳基。本发明还提供了一种包含上述化合物的药物组合物。