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. 24, 1990
Filed:
Feb. 17, 1989
Applicant:
Inventors:
Dino Nisato, Pavia, IT;
Marco Frigerio, Mantova, IT;
Assignee:
Sanofi, Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
548953 ; 548473 ;
Abstract
The 3-aminoazetidine, its salts, new intermediates of formula ##STR1## wherein X' represents hydrogen or a protecting group and both X' represent hydrogen or, together with the nitrogen atom, a phthalimido group, X' and both X' not being hydrogen at the same time; a process for the preparation of the 3-aminoazetidine, starting from a 1-protected 3-sulfonyloxyazetidine by reaction with the potassium phthalimide and transformation of the above mentioned intermediates.