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. 24, 2013
Filed:
Jun. 18, 2010
Applicants:
Paul Alan Jass, Peculiar, MO (US);
Todd Jeffrey Johnson, Olds, IA (US);
Jason Scott Douglas, Charles City, IA (US);
Matthew Wendell Schiesher, Charles City, IA (US);
Inventors:
Paul Alan Jass, Peculiar, MO (US);
Todd Jeffrey Johnson, Olds, IA (US);
Jason Scott Douglas, Charles City, IA (US);
Matthew Wendell Schiesher, Charles City, IA (US);
Assignee:
Cambrex Charles City, Inc., Charles City, IA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 231/12 (2006.01); C07C 271/20 (2006.01); C07C 303/32 (2006.01); C07C 237/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides methods and compositions for preparing amphetamine conjugates, such as lisdexamfetamine, homoarginine-D-amphetamine, and salts thereof. In one embodiment, the invention provides methods of preparing an amphetamine conjugate from a chloramphetamine intermediate.