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. 12, 2005
Filed:
Jul. 18, 2001
Applicants:
Marcello Allegretti, L'Aquila, IT;
Maria Candida Cesta, L'Aquila, IT;
Roberto Curti, L'Aquila, IT;
Luca Nicolini, L'Aquila, IT;
Inventors:
Marcello Allegretti, L'Aquila, IT;
Maria Candida Cesta, L'Aquila, IT;
Roberto Curti, L'Aquila, IT;
Luca Nicolini, L'Aquila, IT;
Assignee:
DOMPE S.p.A., L'Aquila, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D405/06 ; C07D295/088 ;
U.S. Cl.
CPC ...
Abstract
(±) 3-(4-Phenyl-1-piperazinyl)-1,2-propanediol cyclic acetals, a process for the optical resolution thereof and their use as intermediates for the preparation of (−) 3-(4-phenyl-1-piperazinyl)-1,2-propanediol (levodropropizine) and salts thereof are described herein.