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Dipeptidyl peptidase inhibitors

a technology of dipeptidyl peptides and inhibitors, which is applied in the field of dipeptidyl peptidase inhibitors, can solve the problems of short half-life of glp-1 (7-36), infertility and amenorrhea, and rapid degradation of glp-1 in vivo

Inactive Publication Date: 2004-12-02
QUALCOMM INC +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent is about compounds that can inhibit an enzyme called dipeptidyl peptidase IV (DPP-IV). DPP-IV is involved in the metabolism of certain peptides and proteins in the body, and has been implicated in various disease states such as diabetes and obesity. The patent describes the use of these compounds to treat these diseases by inhibiting DPP-IV and promoting the endogenous levels of certain peptides that are beneficial in preventing and treating these conditions. The technical effect of this patent is the development of new compounds and methods for inhibiting DPP-IV and promoting GLP-1 (7-36) levels in the body.

Problems solved by technology

Unfortunately, GLP-1 (7-36) is degraded rapidly in vivo and has been shown to have a short half-life in vivo (t.sub.1 / 2=1.5 minutes).
It results in infertility and amenorrhea.

Method used

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  • Dipeptidyl peptidase inhibitors
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Examples

Experimental program
Comparison scheme
Effect test

example 1

2-[2-(3-Amino-piperidin-1-yl)-4-oxo4H-quinazolin-3-ylmethyl]-benzonitrile

[0806] 48

example 1b

2,4-Dichloro-quinazoline

[0807] 49

[0808] To 3.2 g of 1H-quinazoline-2,4-dione (1A) in 20 mL POCl.sub.3 was added 0.8 mL NN-dimethylaniline. The mixture was then heated at reflux for 16 hours. Excess POCl.sub.3 was removed in vacuo, providing crude product 1B.

example 1c

2-Chloro-3H-quinazolin-4-one

[0809] 50

[0810] A mixture of 20 mL of 1N NaOH, 20 mL of THF, and 2 g of 1B was stirred at room temperature under N.sub.2 for 4 hours. The solution was chilled and adjusted to pH 5 with AcOH. The solids that precipitated were filtered to give 1.62 g (90%) of product 1C.

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Abstract

Compounds, pharmaceuticals, kits and methods are provided for use with DPP-IV and othe S9 proteases that comprise a compound comprising the formula: wherein Q is selected from the group consisting of CO, SO, SO2, or C=NR9; and R1, R2, R3 and R4 as defined herein.

Description

[0001] This application claims the benefit of U.S. Provisional Application No.60 / 457,785, filed Mar. 25, 2003, which is incorporated herein by reference.[0002] The invention relates to compounds that may be used to inhibit dipeptidyl peptidases as well as compositions of matter and kits comprising these compounds. The present invention also relates to methods for inhibiting dipeptidyl peptidases as well as treatment methods using compounds according to the present invention.DESCRIPTION OF RELATED ART[0003] Dipeptidyl Peptidase IV (IUBMB Enzyme Nomenclature EC.3.4.14.5) is a type II membrane protein that has been referred to in the literature by a wide a variety of names including DPP4, DP4, DAP-IV, FAPP, adenosine deaminase complexing protein 2, adenosine deaminase binding protein (ADAbp), dipeptidyl aminopeptidase wV; Xaa-Pro-dipeptidyl-aminopeptidase; Gly-Pro naphthylamidase; postproline dipeptidyl aminopeptidase IV; lymphocyte antigen CD26; glycoprotein GP10; dipeptidyl peptidase...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61KA61K6/00A61K31/513A61K31/517A61K31/519A61K31/5395A61K31/549C07D239/95C07D285/16C07D401/04C07D403/04C07D417/02C07D471/04C07D473/18C07D487/04
CPCC07D401/04C07D403/04C07D471/04C07D473/18C07D487/04A61P15/08A61P15/10A61P17/00A61P19/10A61P25/00A61P3/04A61P31/18A61P35/00A61P3/08A61P37/02A61P43/00A61P3/10C07D239/95
Inventor FENG, JUNGWALTNEY, STEPHEN L.KALDOR, STEPHEN W.STAFFORD, JEFFREY A.WALLACE, MICHAEL B.ZHANG, ZHIYUAN
Owner QUALCOMM INC