Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...
Patent
1984-12-06
1990-11-20
Berch, Mark L.
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Heterocyclic carbon compounds containing a hetero ring...
514245, 514248, 514252, 544182, 544198, 544309, 544212, 544235, 544237, 544238, C07D40112, C07D40312, A61K 3153, A61K 3150
Patent
active
049719688
ABSTRACT:
There are provided novel pyridazinone derivatives having the general formula (I): ##STR1## wherein A represents 5- or 6-membered heterocyclic ring having 1-3 nitrogen atoms, which may be substituted by at least one member selected from the group consisting of C.sub.1-5 alkyl, cyano, hydroxyl, C.sub.1-5 alkoxyl, amino, C.sub.1-5 alkylamino, C.sub.2-6 dialkylamino, C.sub.2-5 acylamino, carboxyl, C.sub.2-5 alkoxycarbonyl and carbamoyl, and R.sup.1 and R.sup.2 independently represent hydrogen atom or C.sub.1-5 alkyl or R.sup.1 and R.sup.2 may form together C.sub.1-5 alkylene, and salts thereof.
REFERENCES:
patent: 4353905 (1982-10-01), Sircar et al.
patent: 4397854 (1983-08-01), Sircar
patent: 4508721 (1985-04-01), Hargreaves
patent: 4521415 (1985-06-01), Katakami et al.
patent: 4521416 (1985-06-01), Sircar et al.
Steck et al., J. Het., Chem. 11, 755 (1974).
Kitada Yoshimi
Kobayashi Makio
Narimatsu Akihiro
Okushima Hiromi
Shimooda Isao
Berch Mark L.
Mitsubishi Kasei Corporation
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