Optically active benzoquinolizine compounds, process for preparing same,
申请人:Tokyo Tanabe Co., Ltd.
公开号:US04946844A1
公开(公告)日:1990-08-07
An optically active (+)-isomer of a benzoquinolizine compound of the formula [I], is provided: ##STR1## where X.sub.1 represents a halogen atom, and R.sub.1 and R.sub.2 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.
Benzo [i,j] quinolizine-2-carboxylic acid derivatives, the salts and their hydrates, pharmaceutical compositions thereof, and process for preparing the same
申请人:TOKYO TANABE COMPANY LIMITED
公开号:EP0203795A2
公开(公告)日:1986-12-03
Benzo[ij]quinolizine-2-carboxylic acid derivatives of the general formula [I] and the salts, and their hydrates are provided:
wherein A is a methylene group and B is a carbonyl group when A and B are linked by a single bond, or A and B unite together to form a vinylene group when A and B are linked by a double bond, R1 is a hydrogen atom, a Cl-3 alkyl group or a 2-hydroxyethyl group, R2 and R3 are hydrogen atoms, methyl groups or ethyl groups and may be identical to or different from each other, R3 may be attached to the same carbon atom as R2, R4 is a methyl or ethyl group, and X is a halogen atom. The benzo-[ij]quinolizine-2-carboxylic acid derivatives and the salts, and their hydrates have good absorbability from the digestive tract into the circulating blood and exhibit excellent and long-lasting antibacterial activity.
本发明提供了通式[I]的苯并[ij]喹嗪-2-羧酸衍生物及其盐类和它们的水合物:
其中,当 A 和 B 通过单键连接时,A 是亚甲基,B 是羰基;当 A 和 B 通过双键连接时,A 和 B 结合在一起形成乙烯基;R1 是氢原子、Cl-3 烷基或 2-羟乙基;R2 和 R3 是氢原子、甲基或乙基,可以彼此相同或不同;R3 可以连接到与 R2 相同的碳原子上;R4 是甲基或乙基;X 是卤素原子。苯并-[ij]喹嗪-2-羧酸衍生物及其盐类和它们的水合物具有良好的从消化道进入血液循环的可吸收性,并表现出卓越而持久的抗菌活性。
Optically active benzoquinolizine compounds, process for preparing same, and antibacterial preparation containing same as active ingredient
申请人:TOKYO TANABE COMPANY LIMITED
公开号:EP0323189A2
公开(公告)日:1989-07-05
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.