Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Carbohydrate doai
Patent
1993-06-10
1994-09-27
Richter, Johann
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Carbohydrate doai
514450, 549264, 536 71, A61K 31365, C07D49322
Patent
active
053507428
ABSTRACT:
Avermectin derivatives are disclosed which incorporate two fluorine atoms at the 4' monosaccharide position, the 4" disaccharide position or the 23 position. Avermectin aglycone derivatives are also disclosed which incorporate two fluorine atoms at position 13 or 23. These difluoro avermectin analogs are derived from corresponding ketones and enones which in turn are prepared by chemical modification of naturally occurring avermectins. These compounds are used as antiparisitic, insecticidal and antihelmintic agents in humans and animals and compositions containing such compounds as the active ingredient thereof are also disclosed.
REFERENCES:
patent: 4171314 (1979-10-01), Chabala et al.
patent: 4173571 (1979-11-01), Chabala et al.
patent: 5229415 (1993-07-01), Linn et al.
patent: 5229416 (1993-07-01), Meinke et al.
Fisher Michael H.
Meinke Peter T.
Mrozik Helmut
Ayler Sylvia A.
Hydorn Michael B.
Merck & Co. , Inc.
Richter Johann
Rose David L.
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