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:
Sep. 29, 2026
Filed:
May. 22, 2023
Applicant:
Hoffmann-la Roche Inc., Little Falls, NJ (US);
Inventors:
Dainis Kaldre, Lörrach, DE;
Christian Oliver Kappe, Graz, AT;
Christian Steffen Moessner, Lörrach, DE;
Peter Sagmeister, Graz, AT;
Joerg Mathias Sedelmeier, Basel, CH;
Jason Douglas Williams, Graz, AT;
Assignee:
Hoffmann-La Roche Inc., Little Falls, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 257/04 (2006.01); C07D 487/04 (2006.01);
U.S. Cl.
CPC ...
C07D 257/04 (2013.01); C07D 487/04 (2013.01);
Abstract
The present invention relates to a process for preparing a compound of formula (I), comprising reacting a compound of formula (II) with trimethylsilyl azide (TMSN) and a chlorinating agent in acetonitrile, wherein the process is performed under continuous-flow conditions and wherein Rand Rare as defined in the description.