Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Patent
1996-03-26
1999-11-09
Dees, Jose' G.
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
544360, 544398, A61K 31495, C07D29508
Patent
active
059815302
ABSTRACT:
The present invention provides a piperazine derivative of the following formula or a pharmacologically acceptable salt thereof ##STR1## wherein R.sub.1 represents a benzene ring, naphthalene ring, quinoline ring, indole ring or chroman ring that may be substituted by lower alkyl, lower alkoxy and/or hydroxy; R.sub.2 and R.sub.3 independently represent hydrogen or lower alkyl.
The compound of the present invention has potent antiallergic activity and can therefore be used with advantage in the treatment of various allergic diseases.
REFERENCES:
patent: 4616086 (1986-10-01), Witte et al.
patent: 5504087 (1996-04-01), Ogata et al.
Ito Kazuhiko
Nakao Hidetoshi
Ogata Kazumi
Sakaue Takahiro
Dees Jos,e G.
Qazi Sabiha
Senju Pharmaceutical Co. Ltd.
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