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.:

US 9221825 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 29, 2015

Filed:

Jan. 20, 2012
Applicants:

Jianping Wang, Yiwu, CN;

Jianguo Wang, Yiwu, CN;

Inventors:

Jianping Wang, Yiwu, CN;

Jianguo Wang, Yiwu, CN;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61K 31/551 (2006.01); C07D 487/04 (2006.01); A61K 9/20 (2006.01);
U.S. Cl.
CPC ...
C07D 487/04 (2013.01); A61K 9/2018 (2013.01);
Abstract

Disclosed are selective phosphodiesterase inhibitor compounds shown in formula (I) or (II) for treating Erectile Dysfunction, the pharmaceutically acceptable salts and configurational isomers thereof. In the formula, the substituents R, R, R, Rand Rare defined as in the specification. Also disclosed are methods for preparing same, and a medical composition comprising compounds of formula (I) or (II), and the use of these compounds for preparing a drug treating or preventing male Erectile Dysfunction.


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