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:
Dec. 15, 2020
Filed:
Dec. 19, 2017
Applicant:
Cristália Produtos Químicos Farmacêuticos Ltda, Itapira, BR;
Inventors:
Ogari Pacheco, Itapira, BR;
Vincenzo De Sio, Itapira, BR;
Murilo Massoni, Itapira, BR;
Leandro Camargo, Itapira, BR;
Assignee:
CRISTÁLIA PRODUTOS QUÍMICOS FARMACÊUTICOS LTDA, Ponte Preta Cep, BR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 487/04 (2006.01);
U.S. Cl.
CPC ...
C07D 487/04 (2013.01);
Abstract
The present invention relates to an efficient and industrially advantageous process for preparing temozolomide and the carbamoyl-AICA intermediate through the use of N-methyl carbamoylimidazole in a good overall yield and high purity.