Ethylated avermectins

U.S. Patent Number: 5387509

Abstract: Avermectins wherein one or both of the 3'- and 3"-positions of the oleandrose disaccharide moiety is substituted by an ethoxy rather than a methoxy group, process for their preparation; and their use as antiparasitic agents.

Inventors: Hawrylik; Steven J. (North Stonington, CT), Lee; S. Edward (Waterford, CT)

Assignee: Pfizer Inc. (New York, NY)

Application Number: 07/371,153

Issued: 1995-02-07

Expired: 2007-02-07

Classes: 435/76 ; 435/886; 514/30; 536/7.1

Field of search: 536/7.1 435/76,886 514/30

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