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
1992-09-22
Chan, Nicky
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
549402, 548253, 514382, A61K 3135, A61K 3141, C07D31124, C07D25704
Patent
active
051497174
ABSTRACT:
Substituted alkanophenones of 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 phenyl that 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, esterified or amidated carboxy, or is lower alkyl that is unsubstituted, substituted by fluoro and chloro or substituted by free esterified 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 and can be used as anti-allergic active ingredients in medicaments.
REFERENCES:
patent: 4474788 (1984-10-01), Bantick
patent: 4546194 (1985-10-01), Miyano
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: 4808572 (1989-02-01), Beck et al.
Beck Andreas
Lang Robert W.
Schaub Bruno
von Sprecher Andreas
Chan Nicky
Ciba-Geigy Corporation
Fishman Irving M.
Kaiser Karen G.
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