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:
Apr. 15, 1986
Filed:
Oct. 25, 1984
Applicant:
Inventor:
Jean-Claude Gehret, Aesch, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; A01N / ; A61K / ;
U.S. Cl.
CPC ...
514450 ; 549264 ; 549265 ;
Abstract
Milbemycin derivatives of the formula I ##STR1## wherein A has the structure ##STR2## or the structure ##STR3## X is either --CH(OR.sub.1)-- or --CO--, R.sub.1 is hydrogen, a silyl group or an acyl group, and R.sub.2 is methyl, ethyl, isopropyl or sec-butyl, can be prepared by singulett oxygen oxidation of the milbemycin derivatives of the formula II herein, wherein X and R.sub.2 have the above meanings, and subsequent reduction of the 15- and 14-peroxides obtained as intermediates. Compounds of the formula I can be prepared as such or in the form of compositions for controlling endo- and ectoparasites, in particular nematodes which are parasites of animals.