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:
Jan. 22, 2013
Filed:
Feb. 20, 2009
Applicants:
Valerio Borzatta, Bologna, IT;
Dina Scarpi, Florence, IT;
Antonio Guarna, Serravezza, IT;
Ernesto G. Occhiato, Florence, IT;
Inventors:
Valerio Borzatta, Bologna, IT;
Dina Scarpi, Florence, IT;
Antonio Guarna, Serravezza, IT;
Ernesto G. Occhiato, Florence, IT;
Assignee:
Endura S.p.A., Bologna, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 471/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to the process of preparation of 2,3,4,9-tetrahydro-1/−/-β-carbolin-3-carboxylic acid esters substituted in position 1 of the general formula (I). in the preferred diastereoisomeric form through a single step starting from tryptophan in racemic form and/or its enantiomers and from 3,4-(methylenedioxy)benzaldehyde.