4-substituted dihydropyrido(4,3-D)pyrimidines as analgesics and

Details 4-substituted dihydropyrido(4,3-D)pyrimidines as analgesics and 4-substituted dihydropyrido(4,3-D)pyrimidines as analgesics and

1991-08-05

1992-03-10

Bond, Robert T.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

544279, 546309, 546311, A61K 31505

Patent

active

050950193

ABSTRACT:
There are described compounds of the formula ##STR1## where R.sub.1 is hydrogen, loweralkyl, arylloweralkyl or aryl;

REFERENCES:
patent: 4614743 (1986-09-01), Chipkin et al.
patent: 4950648 (1990-08-01), Raddatz et al.
patent: 5059602 (1991-10-01), Effland et al.

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