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:
May. 17, 2005
Filed:
Aug. 20, 2003
Chris Hugh Senanayake, Shrewsbury, MA (US);
Zhengxu Han, Shrewsbury, MA (US);
Dhileepkumar Krishnamurthy, Westborough, MA (US);
Derek Pflum, Waltham, MA (US);
Chris Hugh Senanayake, Shrewsbury, MA (US);
Zhengxu Han, Shrewsbury, MA (US);
Dhileepkumar Krishnamurthy, Westborough, MA (US);
Derek Pflum, Waltham, MA (US);
Sepracor Inc., Marlborough, MA (US);
Abstract
This invention encompasses novel methods of preparing sibutramine and sibutramine derivatives, and stereomerically pure sibutramine derivatives in particular. Examples of sibutramine derivatives include, but are not limited to, sibutramine metabolites such as desmethylsibutramine and didesmethylsibutramine. The invention further encompasses novel compounds useful in the synthesis of sibutramine derivatives.