IP Library › Granted Patent US 9,439,888
Granted Patent B2
US 9,439,888 · App. 15/005,773 · Granted Sep 13, 2016

Tetrazolones as a carboxylic acid bioisosteres

Inventors: Matthew Duncton (San Bruno, CA); Rajinder Singh (Belmont, CA)
Assignee: Rigel Pharmaceuticals, Inc.
A61K31/4155A61K31/4725A61K31/517A61K31/519A61K31/5383C07D401/12C07D403/10C07D403/12C07D471/04C07D498/06
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Quick Facts
Patent No.
US 9,439,888
App. No.
15/005,773
Granted
Sep 13, 2016
Kind
B2
Abstract

The present disclosure provides compounds that include a tetrazolone derivative of a carboxyl group of an active agent. This disclosure also relates to pharmaceutical compositions that include these compounds, methods of using these compounds in the treatment of various diseases and disorders, and processes for preparing these compounds.

Claims (2)

1. A compound selected from:

2. A pharmaceutical composition comprising a compound of claim 1 and a pharmaceutically acceptable carrier.

Assignments (2)
SECURITY INTEREST Recorded Aug 25, 2022
From: RIGEL PHARMACEUTICALS, INC.
To: MIDCAP FINANCIAL TRUST
Reel/Frame 061327/0712 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 11, 2016
From: DUNCTON, MATTHEW; SINGH, RAJINDER
To: RIGEL PHARMACEUTICALS, INC.
Reel/Frame 037717/0898 →
Continuity (2)
Provisional Application 62107948 · Jan 26, 2015
Related Publication 20160213648A1 · Jul 28, 2016