Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Patent
1991-11-15
1992-09-08
Chan, Nicky
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
549402, 549 60, 548525, 548253, 514444, 514422, 514382, A61K 3135, A61K 3141, C07D31124, C07D25704
Patent
active
051458683
ABSTRACT:
Substituted alkanophenones of the general formula ##STR1## in which R.sub.1 is unsubstituted or fluorinated lower alkyl, R.sub.2 is hydrogen, or unsubstituted or fluorinated lower alkyl or lower alkenyl, X is lower alkylene, oxy, thio or a direct bond, alk is lower alkylene, n is 1 or 2, R.sub.3 is a 5-membered heteroaryl radical that contains 1N, O or S atom as hetero atom and is unsubstituted or is substituted by unsubstituted or fluorinated lower alkyl, by etherified or esterified hydroxy, by unsubstituted or lower alkylated amino and/or by free, esterfied or amidated carboxy, R.sub.4 is free, esterified or amidated carboxy or 5-tetrazolyl, and R.sub.5 is hydrogen or lower alkyl, have leucotriene-antagonistic properties can e used as antiallergic active ingredients in medicaments.
REFERENCES:
patent: 4474788 (1984-10-01), Bantick
patent: 4609744 (1986-09-01), Young et al.
patent: 4649215 (1987-03-01), Von Sprecher et al.
patent: 4761425 (1988-08-01), Girard et al.
patent: 4785004 (1988-11-01), Von Sprecher et al.
patent: 4808572 (1989-02-01), Beck et al.
Beck Andreas
von Sprecher Andreas
Chan Nicky
Ciba-Geigy Corporation
Fishman Irving M.
Kaiser Karen G.
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