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. 06, 2022
Filed:
Jan. 05, 2021
Applicant:
Nanjing Transthera Biosciences Co. Ltd., Nanjing, CN;
Inventors:
Assignee:
Nanjing TransThera Biosciences Co. Ltd., Nanjing, CN;
Primary Examiner:
Int. Cl.
CPC ...
C07D 491/107 (2006.01); C07D 471/04 (2006.01); C07D 519/00 (2006.01);
U.S. Cl.
CPC ...
C07D 491/107 (2013.01); C07D 471/04 (2013.01); C07D 519/00 (2013.01);
Abstract
The present invention falls within the technical field of medicine, and in particular relates to PDE9 inhibitor compounds as shown in formula (I) or pharmaceutically acceptable salts or stereoisomers thereof, and also relates to pharmaceutical preparations and pharmaceutical compositions of the compounds and the uses thereof. X, X, X, X, R, R, ring A, L and m are as defined in the description. The compounds can be used to prepare drugs for treating or preventing related diseases mediated by PDE9.