Substituted aryl compounds as novel cyclooxygenase-2 selective inhibitors, compositions and methods of use

a selective inhibitor and cyclooxygenase technology, applied in the field of substituted aryl compounds, can solve the problems of undesirable side effects, gastrointestinal ulceration and renal toxicity, and the repeated use of nsaids has been associated with adverse effects, so as to improve the cardiovascular profile of cox-2 selective inhibitors, anti-inflammatory properties, and unexpected potential for wound healing

Inactive Publication Date: 2005-03-17
NICOX SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention provides novel aryl substituted compounds that are COX-2 selective inhibitors. These compounds are potent analgesics, have antiinflammatory properties and have an unexpected potential for facilitating wound healing. The novel compounds also have unexpected properties in the treatment and / or prevention of renal toxicity and for improving the cardiovascular profile of COX-2 selective inhibitors. The invention also provides compositions comprising the novel compounds described herein in a pharmaceutically acceptable carrier.
Yet another aspect of the invention provides methods for improving the cardiovascular profile of COX-2 selective inhibitors in a patient in need thereof which comprises administering to the patient a therapeutically effective amount of at least one COX-2 selective inhibitor, substituted with at least one NO and / or NO2 group (i.e., nitrosylated and / or nitrosated), and, optionally, at least one compound that donates, transfers or releases nitric oxide as a charged species, i.e., nitrosonium (NO+) or nitroxyl (NO—), or as the neutral species, nitric oxide (NO.), and / or stimulates endogenous production of nitric oxide or EDRF in vivo and / or is a substrate for nitric oxide synthase and / or stimulates endogenous production of NO or EDRF in vivo and / or is a substrate for nitric oxide synthase (i.e. NO donor). The methods can optionally further comprise the administration of at least one of 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) inhibitors, antiplatelet agents, thrombin inhibitors, thromboxane inhibitors, and mixtures thereof. In this aspect of the invention, the methods can involve administering the nitrosated and / or nitrosylated COX-2 selective inhibitors, administering the COX-2 selective inhibitors, that are optinally nitrosated and / or nitrosylated, and NO donors, administering the COX-2 selective inhibitors, that are optinally nitrosated and / or nitrosylated, and at least one of 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) inhibitors, antiplatelet agents, thrombin inhibitors or thromboxane inhibitors, or administering the COX-2 selective inhibitors, that are optinally nitrosated and / or nitrosylated, NO donors, and at least one of 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) inhibitors, antiplatelet agents, thrombin inhibitors or thromboxane inhibitors.

Problems solved by technology

The chronic use of NSAIDs has been associated with adverse effects, such as gastrointestinal ulceration and renal toxicity.
The undesirable side effects are also due to the inhibition of prostaglandin in the affected organ.
However, these compounds can result in dyspepsia and can cause gastropathy (Mohammed et al, N. Engl. J. Med., 340(25) 2005 (1999)).

Method used

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  • Substituted aryl compounds as novel cyclooxygenase-2 selective inhibitors, compositions and methods of use
  • Substituted aryl compounds as novel cyclooxygenase-2 selective inhibitors, compositions and methods of use
  • Substituted aryl compounds as novel cyclooxygenase-2 selective inhibitors, compositions and methods of use

Examples

Experimental program
Comparison scheme
Effect test

example 1

1-(6-(Cyclohexylmethyl)(2-H-benzo(3,4-d)1,3-dioxolen-5-yl))-4-(methylsulfonyl)benzene

1 a. 6-Bromo-2H-benzo(d) 1,3-dioxolene-5-carbaldehyde

The title compound was synthesized as described in the literature (Khanapure, S. P. and Biehl, E. R. J. Org. Chem. 1990, 55, 1471). Treatment of piperonal (40 g) with bromine (40 mL) in acetic acid (500 mL) and carbon disulfide (50 mL) containing a catalytic amount of iodine at room temperature, overnight, gave the title compound (46 g, 70% yield), mp 128-130° C. 1H NMR (300 MHz, CDCl3) δ10.17 (s, 1H, 7.33 (s, 1H), 7.03 (s, 1H), 6.06 (s, 2H), 13C NMR (75 MHz, CDCl3) δ190.3, 153.3, 148.1, 128.0, 121.5, 113.2, 108.1, 102.7; mass spectrum (API-TIS) m / z 229 (Br 79) and 231 (Br 81) (M+H) LRMS (APIMS) m / z 229 (M+H)+ and 231 ((M+H)+2)+.

1b. 6-(4-Methylthiophenyl)-2H-benzo(d) 1,3-dioxolene-5-carbaldehyde

The product of Example 1a (1.15 g, 5 mmol) and 4-(methylthio)benzeneboronic acid (840 mg, 5 mmol) were dissolved in toluene (75 mL) and sodium carb...

example 2

Cyclohexyl(6-(4-(methylsulfonyl)phenyl)(2H-benzo(d)1,3-dioxolan-5-yl) ketone

2a. Cyclohexyl(6-(4-methylthiophenyl)(2H-benzo(d) 1,3-dioxolan-5-yl))methan-1-ol

The product of Example 1b (272 mg, 1 mmol) was dissolved in anhydrous THF (10 mL). The solution was cooled to 0° C. and cyclohexyl magnesium bromide (2 M in THF, 2 m / L, 2 mmol) was added drop-wise under nitrogen atmosphere. The reaction mixture was stirred at 0° C. for 30 minutes and then at room temperature for 2 hours. The reaction was quenched with saturated aqueous ammonium chloride, acidified with 1 N HCl and then extracted with ethyl acetate (2×50 mL). The combined organic extracts were washed with water (1×25 mL), brine (1×25 mL), dried over sodium sulfate, filtered and the filtrate was evaporated under reduced pressure to give the crude product. Purification by silica gel column chromatography using 20% ethyl acetate in hexane gave the title compound as a white solid (331 mg, 93% yield), mp 110-112 0° C. 1H NMR (CDCl3...

example 3

6-(4-(Methylsulfonyl)phenyl)(2H-benzo(d)1,3-dioxolan-5-yl)phenyl ketone

3a. (6-(4-Methylthiophenyl)(2H-benzo(d) 1,3-dioxolan-5-yl))phenylmethan-1-ol

The product of Example 1b (2.72 g, 10 mmol) was dissolved in anhydrous THF (100 mL). The solution was cooled to 0° C. and phenyl magnesium chloride (2 M in THF) (12 mL, 24 mmol) was added drop-wise under a nitrogen atmosphere. The reaction mixture was stirred at 0° C. for 30 minutes and then at room temperature for 2 hours. The reaction was quenched with saturated aqueous ammonium chloride, acidified with 1 N HCl and the THF layer was separated. The aqueous layer was extracted with ethyl acetate. The combined organic extracts were dried over sodium sulfate, filtered and the filtrate was evaporated under reduced pressure to give the crude product. Purification by silica gel column chromatography using 20% ethyl acetate in hexane as the eluant gave the title compound as a white solid (2.3 g, 66% yield), mp 96-99° C. 1H NMR (CDCl3) δ 7.2...

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Abstract

The invention describes novel substituted aryl compounds that are cyclooxygenase 2 (COX-2) selective inhibitors and novel compositions comprising at least one cyclooxygenase 2 (COX-2) selective inhibitor, and, optionally, at least one compound that donates, transfers or releases nitric oxide, stimulates endogenous synthesis of nitric oxide, elevates endogenous levels of endothelium-derived relaxing factor or is a substrate for nitric oxide synthase, and / or, optionally, at least one therapeutic agent, such as, steroids, nonsterodal anti-inflammatory compounds (NSAID), 5-lipoxygenase (5-LO) inhibitors, leukotriene B4 (LTB4) receptor antagonists, leukotriene A4 (LTA4) hydrolase inhibitors, 5-HT agonists, 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) inhibitors, H2 antagonists, antineoplastic agents, antiplatelet agents, thrombin inhibitors, thromboxane inhibitors, decongestants, diuretics, sedating or non-sedating anti-histamines, inducible nitric oxide synthase inhibitors, opioids, analgesics, Helicobacter pylori inhibitors, proton-pump-inhibitors, isoprostane inhibitors, and mixtures thereof. The invention also provides novel kits comprising at least one COX-2 selective inhibitor, and, optionally, at least one nitric oxide donor, and / or, optionally, at least one therapeutic agent. The novel cyclooxygenase 2 selective inhibitors of the invention can be optionally nitrosated and / or nitrosylated. The invention also provides methods for treating inflammation, pain and fever; for treating and / or improving the gastrointestinal properties of COX-2 selective inhibitors; for facilitating wound healing; for treating and / or preventing renal toxicity or other toxicities; for treating and / or preventing other disorders resulting from elevated levels of cyclooxygenase-2; and for improving the cardiovascular profile of COX-2 selective inhibitors.

Description

FIELD OF THE INVENTION The invention describes novel substituted aryl compounds that are cyclooxygenase 2 (COX-2) selective inhibitors and novel compositions comprising at least one cyclooxygenase 2 (COX-2) selective inhibitor, and, optionally, at least one compound that donates, transfers or releases nitric oxide, stimulates endogenous synthesis of nitric oxide, elevates endogenous levels of endothelium-derived relaxing factor or is a substrate for nitric oxide synthase, and / or, optionally, at least one therapeutic agent. The invention also provides novel kits comprising at least one COX-2 selective inhibitor, and, optionally, at least one nitric oxide donor, and / or, optionally, at least one therapeutic agent. The novel cyclooxygenase 2 selective inhibitors of the invention can be optionally nitrosated and / or nitrosylated. The invention also provides methods for treating inflammation, pain and fever; for treating and / or improving the gastrointestinal properties of COX-2 selective ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61K31/10A61K31/357A61K31/36A61K31/443A61K31/4525A61K45/00A61K45/06A61P1/04A61P1/14A61P7/02A61P7/04A61P9/10A61P11/00A61P11/06A61P11/08A61P13/02A61P13/12A61P15/04A61P15/08A61P17/00A61P17/02A61P19/02A61P21/02A61P25/28A61P27/02A61P27/16A61P29/00A61P31/04A61P35/00A61P35/02A61P37/08A61P39/02A61P43/00C07C317/14C07C317/22C07C317/24C07D317/56C07D319/08C07D319/18C07D319/20C07D405/06C07D413/06
CPCA61K45/06C07D317/56C07D405/06C07D319/18C07D319/20C07D319/08A61P1/04A61P1/14A61P11/00A61P11/06A61P11/08A61P13/02A61P13/12A61P15/04A61P15/08A61P17/00A61P17/02A61P19/02A61P21/02A61P25/28A61P27/02A61P27/16A61P29/00A61P31/04A61P35/00A61P35/02A61P37/08A61P39/02A61P43/00A61P7/02A61P7/04A61P9/10
Inventor KHANAPURE, SUBHASH P.GARVEY, DAVID S.EARL, RICHARD A.EZAWA, MAIKOFANG, XINQINGASTON, RICKY D.
Owner NICOX SA
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