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. 13, 2008
Filed:
Sep. 01, 2004
Applicants:
Hans Petersen, Vanløse, DK;
Michael Bech Sommer, Bagsvaerd, DK;
Robert Dancer, Hvidovre, DK;
Inventors:
Assignee:
H. Lundbeck A/S, Valby-Copenhagen, DK;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 471/02 (2006.01); C07D 491/02 (2006.01); C07D 498/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a new method of preparing gaboxadol (THIP), which is useful for treating sleep disorders. In particular a method of preparing THIP comprising reacting a compound of formula (8b) or a salt thereof with an acid, typically a mineral acid, to obtain THIP as an acid addition salt. The present invention also relates to several intermediates