Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Patent
1989-09-18
1992-11-10
Gerstl, Robert
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
514364, 548136, 548144, C07D41704, C07D41304, A01N 4382
Patent
active
051623498
ABSTRACT:
Mercapto-bis-[1,3,4-oxa- and -thiadiazoles] ##STR1## in which X.sub.1 and X.sub.2 independently of one another are oxygen or sulfur, R.sub.1 is hydrogen or C.sub.1 -C.sub.5 alkyl which is unsubstituted or substituted by halogen, C.sub.1 -C.sub.3 alkoxy or cyano; C.sub.3 -C.sub.7 alkenyl which is unsubstituted or substituted by halogen; or C.sub.3 -C.sub.7 alkynyl which is unsubstituted or substituted by halogen,
REFERENCES:
patent: 3770754 (1973-11-01), Parsons
patent: 4094014 (1987-09-01), Beriger
patent: 4454147 (1984-06-01), Di Menna et al.
patent: 4894380 (1990-01-01), Nyfeler
Beriger Ernst
Eckhardt Wolfgang
Ciba-Geigy Corporation
Gerstl Robert
Mathias Marla J.
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