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:
Jan. 17, 2023
Filed:
Sep. 03, 2021
Applicant:
Fudan University, Shanghai, CN;
Inventors:
Fener Chen, Shanghai, CN;
Meifen Jiang, Shanghai, CN;
Dang Cheng, Shanghai, CN;
Minjie Liu, Shanghai, CN;
Huashan Huang, Shanghai, CN;
Assignee:
Fudan University, Shanghai, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 19/00 (2006.01); C07D 239/42 (2006.01);
U.S. Cl.
CPC ...
B01J 19/0093 (2013.01); C07D 239/42 (2013.01); B01J 2219/00889 (2013.01); B01J 2219/00909 (2013.01); B01J 2219/00961 (2013.01); B01J 2219/00963 (2013.01);
Abstract
Disclosed herein relates to pharmaceutical engineering, and more particularly to a micro reaction system and a method for preparing 2-methyl-4-amino-5-cyanopyrimidine using the same. An acetamidine hydrochloride solution and an (dimethylaminomethylene)malononitrile solution are separately pumped into the micro reaction system including a micromixer and an agitating microchannel reactor in communication at the same time for a continuous condensation-cyclization reaction to obtain 2-methyl-4-amino-5-cyanopyrimidine.