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:
Feb. 18, 2020
Filed:
Mar. 31, 2017
Applicant:
Impact Therapeutics, Inc., Shanghai, CN;
Inventors:
Suixiong Cai, Shanghai, CN;
Ping Huang, Shanghai, CN;
Assignee:
IMPACT THERAPEUTICS, INC., Shanghai, CN;
Primary Examiner:
Int. Cl.
CPC ...
C07D 403/14 (2006.01); C07D 239/96 (2006.01); B01D 9/00 (2006.01);
U.S. Cl.
CPC ...
C07D 403/14 (2013.01); C07D 239/96 (2013.01); B01D 9/005 (2013.01);
Abstract
This disclosure provides a process for preparing 1-(arylmethyl)quinazoline-2,4(1H,3H)-diones, specially provides a method for preparing the compound of Formula I, and the method comprises the step of reacting the compound of Formula II with the compound of Formula A in the presence of a condensation agent, an organic base and an organic solvent by condensation.