The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 1992
Filed:
May. 14, 1990
Applicant:
Inventors:
Timothy A Blizzard, Rahway, NJ (US);
Gaye Margiatto, Freehold, NJ (US);
Assignee:
Merck & Co., Inc., Rahway, NJ (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; C07H / ;
U.S. Cl.
CPC ...
514 30 ; 536-71 ;
Abstract
There are disclosed avermectin derivatives which incorporate a spacer between the disaccharide and the aglycone. The synthetic spacer-containing analogs are derived from the corresponding aglycones which in turn are prepared by chemical modification of naturally occurring avermectins. The compounds are active antiparasitic agents and compositions for that use are disclosed.