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. 10, 2007
Filed:
Jun. 06, 2005
Applicant:
Bettina Hölzer, Leverkusen, DE;
Inventor:
Bettina Hölzer, Leverkusen, DE;
Assignee:
LANXESS Deutschland GmbH, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 279/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A novel one-stage process for preparing 10α-[4'-(S,S-dioxothiomorpholin-1′-yl)]-10-deoxo-10-dihydroartemisinin () by reacting a compound of the formula () in which X is a halogen atom with thiomorpholine dioxide at a temperature in the range of −30° C. to +20° C. is provided.