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:
Jul. 24, 1979
Filed:
May. 18, 1978
Applicant:
Inventors:
Roman R Lorenz, Schodack, NY (US);
Edward D Parady, Schodack, NY (US);
William H Thielking, Schodack, NY (US);
Assignee:
Sterling Drug Inc., New York, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
546 72 ;
Abstract
Apomorphine derivatives are prepared in improved yield by rearrangement of the corresponding morphine derivative in the presence of anhydrous orthophosphoric acid under a partial vacuum and hydrolysis of the resulting phosphate esters in an aqueous medium.