6-benzoxazinyl- and 6-benzothiazinyl-2,3,4,5-tetrahydropyridazin

Details 6-benzoxazinyl- and 6-benzothiazinyl-2,3,4,5-tetrahydropyridazin 6-benzoxazinyl- and 6-benzothiazinyl-2,3,4,5-tetrahydropyridazin

1987-06-22

1988-08-23

Raymond, Richard L.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Heterocyclic carbon compounds containing a hetero ring...

5142305, 544 52, 544105, A61K 31535, A61K 3154, C07D41304, C07D41704

Patent

active

047661186

ABSTRACT:
The synthesis of benzoxazinyl- and benzothiazinylpyridazinone compounds is described. The novel compounds are cardiotonic agents and inhibitors of phosphodiesterase. In addition, the compounds are useful as smooth muscle relaxants and bronchodilators.

REFERENCES:
patent: 4619687 (1986-10-01), Haga et al.
patent: 4640707 (1987-02-01), Nagano et al.

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