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:
Sep. 04, 2007
Filed:
Sep. 14, 2001
Jordi Bosch I Lladó, Girona, ES;
Pelayo Camps García, Barcelona, ES;
Juan Contreras Lascorz, Celrà, ES;
MA Carmen Onrubia Miguel, Barcelona, ES;
Jordi Bosch i Lladó, Girona, ES;
Pelayo Camps García, Barcelona, ES;
Juan Contreras Lascorz, Celrà, ES;
Ma Carmen Onrubia Miguel, Barcelona, ES;
Medichem, S.A., Barcelona, ES;
Abstract
The present invention is directed to intermediate compounds of mirtazapine and methods for obtaining same. A method is described for obtaining (±)-3-phenyl-1-methylpiperazine, an important intermediate for obtaining mirtazapine, which is based on imposing a cyclization reaction, in the presence of a reducing agent, on new compounds of general formula (1) in which Z is a leaving group capable of undergoing a nucleophilic displacement. A method is also described for obtaining the new compounds of formula (1).