logo

For the Inventor, By the Inventor

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.:

US 11478481 B1

PDFFull Text
Date of Patent:
Oct. 25, 2022

Filed:

Oct. 10, 2018

Process for preparation of optically pure and optionally substituted 2-(1-hydroxy-alkyl)-chromen-4-one derivatives and their use in preparing pharmaceuticals

Applicant:

Rhizen Pharmaceuticals SA, La Chaux-de-Fonds, CH;

Inventors:

Jayaraman V. Raman, Vadodara, IN;

Swaroop K. Vakkalanka, La Chaux-de-Fonds, CH;

Assignee:

RHIZEN PHARMACEUTICALS AG, Basel, CH;

Attorney:

Blank Rome LLP

Primary Examiner:

Kortney L Klinkel

Assistant Examiner:

Jason Deck

Int. Cl.
CPC ...
A61K 31/352 (2006.01); C07D 311/36 (2006.01); A61K 31/5377 (2006.01); A61K 31/52 (2006.01); C07D 487/04 (2006.01); C07D 311/58 (2006.01); C07D 487/14 (2006.01); C07D 473/34 (2006.01); C07B 55/00 (2006.01);
U.S. Cl.
CPC ...
A61K 31/5377 (2013.01); A61K 31/352 (2013.01); A61K 31/52 (2013.01); C07B 55/00 (2013.01); C07D 311/36 (2013.01); C07D 311/58 (2013.01); C07D 473/34 (2013.01); C07D 487/04 (2013.01); C07D 487/14 (2013.01); C07B 2200/07 (2013.01);
Abstract

The present invention relates to compounds useful as pharmaceutical intermediates, to processes for preparing the intermediates, to intermediates used in the processes, and to the use of the intermediates in the preparation of pharmaceuticals. In particular, the present invention concerns enantiomerically pure optionally substituted 2-(1-hydroxy-alkyl)-chromen-4-one derivatives represented by formula (IA) and (IB), processes for preparing the alcohol derivatives and their use in preparing pharmaceuticals.

Find Patent Forward Citations

Raman, Jayaraman. (2022). Process for preparation of optically pure and optionally substituted 2-(1-hydroxy-alkyl)-chromen-4-one derivatives and their use in preparing pharmaceuticals (U.S. Patent No. 11478481). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11478481

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…