Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Patent
1999-09-27
2000-10-03
Ramsuer, Robert W.
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
544140, 5462757, 5483611, 5483612, A61K 31416, A61P 1106, C07D40706
Patent
active
061273988
ABSTRACT:
The invention relates to compounds of the formula I ##STR1## and pharmaceutically acceptable salts thereof, wherein R.sub.2.sup.a and R.sub.2.sup.b are independently selected from the group consisting essentially of hydrogen and hereinafter recited substituents, provided that one, but not both of R.sub.2.sup.a and R.sub.2.sup.b must be independently selected as hydrogen, wherein said substituents comprise: ##STR2## wherein the dashed lines in formulas (Ia) and (Ib) independently and optionally represent a single or double bond, provided that in formula (Ia) both dashed lines cannot both represent double bonds at the same time; and
REFERENCES:
patent: 6011159 (2000-01-01), Caron et al.
Ginsburg Paul H.
Pfizer Inc
Ramsuer Robert W.
Richardson Peter C.
Speer Raymond M.
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