Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Pyridine, pyrimidine, quinoline, quinazoline, and naphthalene urotensin-II receptor antagonists

a technology of urotensin-ii receptor and pyrimidine, which is applied in the field of urotensin-ii receptor antagonists, can solve problems such as pathological consequences of cardiac hemodynamic dysfunction

Inactive Publication Date: 2008-01-03
ENCYSIVE PHARMA INC
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the resultant release of both contractile and relaxant factors is normally under stringent regulation, an aberration in this status quo can result in cardiohemodynamic dysfunction with pathological consequences.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pyridine, pyrimidine, quinoline, quinazoline, and naphthalene urotensin-II receptor antagonists
  • Pyridine, pyrimidine, quinoline, quinazoline, and naphthalene urotensin-II receptor antagonists
  • Pyridine, pyrimidine, quinoline, quinazoline, and naphthalene urotensin-II receptor antagonists

Examples

Experimental program
Comparison scheme
Effect test

example 1

N-(2-Dimethylamino-ethyl)-3-(2-methyl-quinolin-4-ylamino)-benzenesulfonamide

[0152]

Step 1. N-(2-Dimethylamino-ethyl)-3-nitro-benzenesulfonamide (3)

[0153] To a solution of 3-nitrobenzenesulfonyl chloride (1, 1.0 g, 4.51 mmol) in anhydrous CH2Cl2 (9.0 mL) was added N,N-dimethyl-ethylenediamine (2, 0.5 mL, 4.55 mmol) dropwise. The resulting solution was stirred at room temperature overnight before it was diluted with EtOAc (80 mL). The organic mixture was washed with saturated NaHCO3 (90 mL), brine (90 mL), and dried over MgSO4. The solids were filtered and the filtrate was concentrated on a rotavap to give 3 as a foam (0.8 g) which was used in the next step without further purification.

Step 2.3-Amino-N-(2-dimethylamino-ethyl)-benzenesulfonamide (4)

[0154] A solution of 3 (0.8 g) in ethanol (10 mL) was subjected to catalytic hydrogenation (10% Pd / C, Degussa, 0.8 g, 3 drops of AcOH, 1 atm.) overnight. To work up, the solids were filtered the filtrate was dried under vacuum to afford 4...

example 2

N-(2-Dimethylamino-ethyl)-3-(2-methyl-quinolin-4-yl-amino)-benzamide

[0156] The title compound was synthesized in the same manner as for Example 1 except that 3-nitrobenzoyl chloride was used instead of 1 in Step 1. It was obtained as a pale yellow solid.

example 3

(3-(2-Dimethylamino-ethoxy)-4-methyl-phenyl)-(2-methyl-quinolin-4-yl)-amine

[0157]

Step 1. tert-Butyl (3-hydroxy-4-methyl-phenyl)-carbamate (7)

[0158] A solution of 5-amino-2-methylphenol (6, 1.0 g, 8.12 mmol) and di-tert-butyl dicarbonate (1.95 g, 8.93 mmol) in THF (25 mL) was heated under reflux overnight. After cooling to room temperature, the solution was diluted with EtOAc (75 mL) and the resulting mixture was washed with water (70 mL), 1N HCl (2×70 mL) and brine (70 mL). The organic layer was then dried over MgSO4, the solids were filtered, and the filtrate was concentrated under reduced pressure. The desired product 7 was obtained as an oil (2.16 g) and was carried on to the next step without further purification.

Step 2. tert-Butyl (3-(2-dimethylamino-ethoxy)-4-methyl-phenyl)-carbamate (8)

[0159] A mixture of 7 (2.16 g, 9.68 mmol), 2-(dimethylamino)-ethyl chloride hydrochloride (1.53 g, 10.6 mmol) and K2CO3 (5.35 g, 3.87 mmol) in DME (28 mL) / H2O (7 mL) was heated under reflux...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
pHaaaaaaaaaa
emission wavelengthsaaaaaaaaaa
emission wavelengthsaaaaaaaaaa
Login to View More

Abstract

The present invention relates to urotensin II receptor antagonists, pharmaceutical compositions containing them and their use.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] The present application is a continuation-in-part of U.S. application Ser. No. 10 / 783,916, filed Feb. 20, 2004 which application claims the benefit of provisional application No. 60 / 451,089, filed Feb. 28, 2003.FIELD OF THE INVENTION [0002] The present invention relates to urotensin II receptor antagonists, pharmaceutical compositions containing them and their use. BACKGROUND OF THE INVENTION [0003] The integrated control of cardiovascular homeostasis is achieved through a combination of both direct neuronal control and systemic neurohormonal activation. Although the resultant release of both contractile and relaxant factors is normally under stringent regulation, an aberration in this status quo can result in cardiohemodynamic dysfunction with pathological consequences. [0004] The principal mammalian vasoactive factors that comprise this neurohumoral axis are angiotensin-II, endothelin-1, and norepinephrine, all of which function via a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(United States)
IPC IPC(8): A61K31/4709A61P1/04A61P11/00A61P19/02A61P21/00A61P43/00A61P9/10C07D215/44A61KA61K31/4706A61K31/503A61K31/513A61K31/5377C07D215/14C07D401/12C07D413/14
CPCA61P1/00A61P1/04A61P3/06A61P3/10A61P7/00A61P9/00A61P9/04A61P9/06A61P9/08A61P9/10A61P9/12A61P11/00A61P11/06A61P11/16A61P13/00A61P13/12A61P15/10A61P19/00A61P19/02A61P21/00A61P25/00A61P25/04A61P25/06A61P25/14A61P25/16A61P25/18A61P25/20A61P25/22A61P25/24A61P25/28A61P25/30A61P27/02A61P29/00A61P43/00C07D215/44C07D401/12C07D401/14
Inventor ANDERSON, ERICDUPRE, BRIANGAO, DAXINKESSLER, RAYMONDLI, WENWU, CHENGDE
Owner ENCYSIVE PHARMA INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com