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:
Mar. 24, 2020
Filed:
Nov. 10, 2016
Applicant:
Química Sintética, S.a., Barcelona, ES;
Inventors:
Giuseppe Barreca, Montevecchia, IT;
Marcello Rasparini, Mol, BE;
Luca Carcone, Milan, IT;
Fabio Morana, Novara, IT;
Assignee:
QUÍMICA SINTÉTICA, S.A., Barcelona, ES;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 227/32 (2006.01); C07C 269/06 (2006.01); C07C 269/04 (2006.01); C07C 229/36 (2006.01); C07C 253/20 (2006.01); C07C 255/21 (2006.01);
U.S. Cl.
CPC ...
C07C 227/32 (2013.01); C07C 229/36 (2013.01); C07C 253/20 (2013.01); C07C 255/21 (2013.01); C07C 269/04 (2013.01); C07C 269/06 (2013.01); C07B 2200/07 (2013.01);
Abstract
The invention relates to an industrially viable and advantageous process for the preparation of (2S,3 R)-2-amino-3-(3,4-dihydroxyphenyl)-3-hydroxypropanoic acid, having the following formula (I) generally known as Droxidopa, or of intermediates useful in the synthesis thereof.