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:
Nov. 26, 1996
Filed:
Apr. 26, 1994
Applicant:
Inventors:
Prakash S Masurekar, Warren, NJ (US);
Wesley L Shoop, Somerville, NJ (US);
Michael A Wallace, Lebanon, NJ (US);
Richard L Monaghan, Somerset, 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
An active avermectin analogue which can be produced by directed biosynthesis is described. The compound, named 26-R-Avermectin B.sub.1 a, is active in the Haemonchus egg to L3 assay and has the following structure: ##STR1##