Novel quinolinecarboxylic acid compounds, processes for preparing them, pharmaceutical composition and use
申请人:KANEBO, LTD.
公开号:EP0220523A2
公开(公告)日:1987-05-06
Novel compounds of the formula:
wherein R is ethyl, 2-fluoroethyl or cyclopropyl, and X is hydrogen atom of fluorine atom, and a pharmaceutically acceptable salt thereof, which have excellent antimicrobial activities in vivo and hence are useful as an antimicrobial agent, and a pharmaceutical composition containing said compound as an active ingredient, processes for the preparation of the compounds, and their use in the preparation of an antimicrobial medicament are disclosed.
式的新型化合物:
其中 R 是乙基、2-氟乙基或环丙基,X 是氢原子或氟原子,公开了其药学上可接受的盐,它们在体内具有优异的抗菌活性,因此可用作抗菌剂,还公开了含有上述化合物作为活性成分的药物组合物、化合物的制备工艺及其在制备抗菌药物中的用途。
UNO, TOSHIO;OKUNO, TOSHIMI;TAGUCHI, MASAHIRO;JUCHI, KOJI;KAWAHATA, YOSHIH+, J. HETEROCYCL. CHEM., 26,(1989) N, C. 393-396
Synthesis of antimicrobial agents.<b>IV</b>. synthesis of 1-hydroxypiperazine dihydrochloride and its applications to pyridone carboxylic acid antibacterial agents
1-Hydroxypiperazinedihydrochloride 7 was prepared and it was applied to the syntheses of new pyridonecarboxylicacidantibacterialagents (PCA-antibacterial agents). 1-Cyclopropyl-6,8-difluoro-1,4-dihydro-7-(4-hydroxypiperazin-1-yl)-4-oxoquinoline-3-carboxylic acid 13 showed the most potent antibacterial activity.
Quinolinecarboxylic acid compounds and antimicrobial agent containing
申请人:Kanebo, Ltd.
公开号:US04686221A1
公开(公告)日:1987-08-11
Novel compounds of the formula: ##STR1## wherein R is ethyl, 2-fluoroethyl or cyclopropyl, and X is hydrogen atom or fluorine atom, and a pharmaceutically acceptable salt thereof, which have excellent antimicrobial activities in vivo and hence are useful as an antimicrobial agent, and an antimicrobial composition containing said compound as an active ingredient, and processes for the preparation of the compounds.