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:
Dec. 22, 1998
Filed:
Nov. 17, 1997
Applicant:
Inventor:
Hemantkumar H Patel, Gurnee, IL (US);
Assignee:
Abbott Laboratories, Abbott Park, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07H / ; C07H / ;
U.S. Cl.
CPC ...
536-74 ; 536 185 ; 536 186 ;
Abstract
A process of preparing 6-O-alkyl erythromycin A is provided. The process includes the steps of protecting the oxime hydroxyl of 9-oxime erythromycin A with a benzoyl protecting group, protecting the 2'-hydroxyl group and optionally the 4'-hydroxyl group with an O-protecting group, alkylating the 6-hydroxyl, removing the benzoyl and O-protecting groups and deoximating the 9-oxime.