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. 17, 1992
Filed:
Jul. 26, 1990
Applicant:
Inventors:
Claudio Giordano, Monza, IT;
Dario Tentorio, Vigano', IT;
Roberto Casagrande, Bresso, IT;
Placido Bertin, Battaglia Terme, IT;
Valeriano Merli, Occhiobello, IT;
Giorgio Sagramora, Padova, IT;
Assignee:
Zambon Group S.p.A., Vicenza, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07B / ;
U.S. Cl.
CPC ...
560 17 ; 540491 ; 562402 ; 562431 ;
Abstract
A process of spontaneous resolution of compounds of formula ##STR1## wherein R has the meanings reported in the description, is described. The compounds of formula III are intermediates useful for the preparation of Diltiazem.