An optically active (+)-isomer of a benzoquinolizine compound of the formula [I], is provided:
where X₁ represents a halogen atom, and R₁ and R₂ represent lower alkyl groups, a physiologically acceptable salt thereof, or a hydrate of either of the foregoing compounds.
The compounds [I]-(+) exhibit an excellent antibacterial activity. Also, the compounds exhibit high solubility in water. Therefore, the compounds of the present invention are usable for the treatment of infectious diseases and usable in aqueous liquid preparations such as injections.
提供了一种式[I]的苯并喹嗪化合物的光学活性(+)-异构体:
其中,X₁ 代表卤素原子,R₁ 和 R₂ 代表低级烷基、其生理上可接受的盐或上述任一化合物的
水合物。
化合物[I]-(+)具有优异的抗菌活性。此外,这些化合物在
水中的溶解度也很高。因此,本发明的化合物可用于治疗传染病,并可用于
水性液体制剂,如注射剂。