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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 12649743 B1

PDFFull Text
Date of Patent:
Jun. 09, 2026

Filed:

Jul. 15, 2025

Tricyclic fused heterocyclic pde3/4 dual inhibitor and use thereof

Applicant:

Xizang Haisco Pharmaceutical Co., Ltd., Lhoka, CN;

Inventors:

Yao Li, Lhoka, CN;

Guobiao Zhang, Lhoka, CN;

Xiaobo Zhang, Lhoka, CN;

Yaming Zhang, Lhoka, CN;

Linjie Yan, Lhoka, CN;

Pingming Tang, Lhoka, CN;

Yan Yu, Lhoka, CN;

Chen Zhang, Lhoka, CN;

Pangke Yan, Lhoka, CN;

Assignee:

XIZANG HAISCO PHARMACEUTICAL CO., LTD., Lhoka, CN;

Attorney:

Wilson Sonsini Goodrich & Rosati

Primary Examiner:

Umamaheswari Ramachandran

Int. Cl.
CPC ...
C07D 471/04 (2006.01); A61K 31/519 (2006.01); A61P 11/00 (2006.01);
U.S. Cl.
CPC ...
C07D 471/04 (2013.01); A61K 31/519 (2013.01); A61P 11/00 (2018.01);
Abstract

Disclosed are a tricyclic fused heterocyclic compound having a PDE3/4 dual inhibitory effect represented by formula (I), a stereoisomer, a solvate, or a pharmaceutically acceptable salt thereof, and the use thereof in the preparation of a drug for treating/preventing PDE3/4-mediated diseases. Each group in formula (I) is as defined in the description.

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Li, Yao. (2026). Tricyclic fused heterocyclic pde3/4 dual inhibitor and use thereof (U.S. Patent No. 12649743). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12649743

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