Certain tricyclic pyrido[3,2,1-ij]cinnoline-8-carboxylates, useful as
申请人:Wakunaga Pharmaceutical Co., Ltd.
公开号:US05359066A1
公开(公告)日:1994-10-25
A compound represented by the following general formula: ##STR1## which is useful as an intermediate for production of a clinically excellent synthetic antibacterial, a salt thereof, and a process for producing the same. In said formula, R.sup.1 is a hydrogen atom or a carboxyl-protecting group; R.sup.2 is a hydrogen atom or a lower alkyl group; X.sup.1 is a hydrogen atom or a halogen atom; X.sup.2 is a halogen atom; X.sub.a.sup.5 is a hydrogen atom or a halogen atom; A is a methylene group; a group of >CH--COOR.sup.4, etc., in which R.sup.4, R.sup.5 and R.sup.6 each are a hydrogen atom or a carboxyl-protecting group; B is a methylene group or a carbonyl group; provided that both A and B must not be methylene groups at the same time.
Novel tricyclic compound or salts thereof, method for producing the same and antimicrobial agent containing the same
申请人:WAKUNAGA SEIYAKU KABUSHIKI KAISHA
公开号:EP0470578A1
公开(公告)日:1992-02-12
A tricyclic compound represented by the general formula (1) and salts thereof.
A method for producing the tricyclic compound and salts thereof, and an antimicrobial agent containing the tricyclic compound and salts thereof as an active ingredient are also disclosed.
PROCESS FOR PRODUCING TRICYCLIC COMPOUND OR SALT THEREOF
申请人:FUJISAWA PHARMACEUTICAL CO., LTD.
公开号:EP0530368A1
公开(公告)日:1993-03-10
A compound represented by general formula (I), which is useful as an intermediate for the production of a clinically excellent synthetic antibacterial, a salt thereof, and a process for producing the same. In said formula, R¹ represents hydrogen or a carboxyl protective group, R² represents hydrogen or lower alkyl, X¹ represents hydrogen or halogen, X² represents halogen, X⁵a represents hydrogen or halogen, A represents methylene, =CH-COOR⁴, etc., and B represents methylene or carbonyl, provided that A and B should not be methylene groups at the same time.