Non-peptidic npy y2 receptor inhibitors

a technology of npy y2 receptor and inhibitor, which is applied in the direction of biocide, drug composition, metabolic disorder, etc., can solve the problem of limited therapeutic potential of these compounds

Inactive Publication Date: 2008-06-05
CARRUTHERS NICHOLAS I +9
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the therapeutic potential for these compounds is limited due to their peptide-like composition and elevated molecular weight.

Method used

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  • Non-peptidic npy y2 receptor inhibitors
  • Non-peptidic npy y2 receptor inhibitors
  • Non-peptidic npy y2 receptor inhibitors

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0106]

trans-N-(1-Acetyl-2,3-dihydro-1H-indol-6-yl)-N-(1-benzyl-piperidin-4-yl)-3-phenyl-acrylamide

[0107]To a solution of 1-[6-(1-benzyl-piperidin-4-ylamino)-2,3-dihydro-indol-1-yl]-ethanone (250 mg, 0.72 mmol) in CH2Cl2 (10 mL) was added cinnamoyl chloride (160 mg, 0.93 mmol) and triethylamine (TEA, 0.30 mL, 2.2 mmol). The mixture was stirred at 25° C. for 16 h. After concentration, the residue was purified by preparative TLC (PTLC, 20% EtOAc / CH2Cl2) to provide 290 mg (85%) of the desired product. 1H NMR (500 MHz, CDCl3): 8.05 (s, 1H), 7.62 (d, J=15.5 Hz, 1H), 7.32-7.20 (m, 10H), 7.17 (d, J=7.9 Hz, 1H), 6.74 (dd, J=6.8, 1.5 Hz, 1H), 6.15 (d, J=15.5 Hz, 1H), 4.80-4.69 (m, 1H), 4.20-4.09 (m, 3H), 3.51-3.45 (m, 1H), 3.31-3.20 (m, 2H), 2.95-2.82 (m, 2H), 2.23 (s, 3H), 2.19-2.08 (m, 2H), 1.91-1.71 (m, 2H). MS: exact mass calculated for C31H33N3O2, 479.26; m / z found, 480.3 [M+H]+.

example 2

[0108]

trans-N-(1-Benzyl-piperidin-4-yl)-N-(2,3-dihydro-1H-indol-6-yl)-3-phenyl-acrylamide

Step A. 6-Amino-2,3-dihydro-indole-1-carboxylic acid tert-butyl ester

[0109]To a mixture of 6-nitroindoline (2 mmol) and TEA (2.2 mmol) in CH2Cl2 (20 mL) was added di-tert-butyl dicarbonate (2 mmol). The mixture was stirred at 25° C. for 16 h. The mixture was washed with satd. aq. NaHCO3 (20 mL) and brine (20 mL), and then was dried and concentrated. The residue was dissolved in MeOH (4 mL), and FeCl3.6H2O (7 mg), Me2NNH2 (21 mmol), and charcoal (50 mg) were added. The resulting mixture was heated at reflux for 4 h. The mixture was filtered through diatomaceous earth and the filtrate was concentrated to obtain the desired compound in quantitative yield.

Step B. 6-(1-Benzyl-piperidin-4-ylamino)-2,3-dihydro-indole-1-carboxylic acid tert-butyl ester

[0110]1-Benzyl-4-piperidone (1 mmol) was stirred with 6-amino-2,3-dihydro-indole-1-carboxylic acid tert-butyl ester (1.2 mmol), Na(OAc)3BH (1.3 mmol) and ...

example 3

[0113]

trans-N-(1-Benzyl-piperidin-4-yl)-N-(1-formyl-2,3-dihydro-1H-indol-6-yl)-3-phenyl-acrylamide

[0114]To a solution of the compound prepared in Example 2 (24 mg, 0062 mmol) in acetonitrile (2 mL) was added formic acid (2.2 μL, 0.060 mmol) and 1,1′-carbonyldiimidazole (11 mg, 0.060 mmol). The mixture was stirred at 25° C. for 16 h. After concentration, the residue was purified by PTLC (20% EtOAc / CH2Cl2) to give the title compound (10 mg, 39%). 1H NMR (500 MHz, CDCl3): 8.88 (s, 0.75H), 8.52 (s, 0.25H), 7.66 (d, J=15.6 Hz, 1H), 7.33-7.21 (m, 12H), 6.78 (dd, J=6.2, 1.7 Hz, 1H), 6.14-6.11 (m, 1H), 4.77-4.72 (m, 1H), 4.22-4.13 (m, 2H), 3.47-3.45 (m, 2H), 3.27-3.19 (m, 2H), 3.00-2.82 (br m, 2H), 2.17-2.13 (br m, 2H), 1.84-1.78 (m, 2H), 1.50-1.44 (m, 2H). MS: exact mass calculated for C30H31N3O2, 465.24; m / z found, 466.2 [M+H]+.

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Abstract

The invention provides novel non-peptidic NPY Y2 receptor inhibitors useful in treating or preventing: anxiolytic disorders or depression; injured mammalian nerve tissue; conditions responsive to treatment through administration of a neurotrophic factor; neurological disorders; bone loss; substance related disorders; obesity; or an obesity-related disorder. Compounds of the invention are also useful in modulating endocrine functions, particularly endocrine functions controlled by the pituitary and hypothalamic glands, and are therefore useful in the treatment or prevention of inovulation and infertility.

Description

FIELD OF THE INVENTION[0001]The invention provides novel non-peptidic NPY Y2 receptor inhibitors useful in treating or preventing: anxiolytic disorders and depression; injured mammalian nerve tissue; a condition responsive to treatment through administration of a neurotrophic factor; a neurological disorder; bone loss; substance related disorders; obesity; or an obesity-related disorder. Compounds of the invention are also useful in modulating endocrine functions; particularly endocrine functions controlled by the pituitary and hypothalamic glands, and may be used to treat inovulation and infertility.BACKGROUND OF THE INVENTION[0002]Regulation and function of the mammalian central nervous system is governed by a series of interdependent receptors, neurons, neurotransmitters, and proteins. The neurons play a vital role in this system, for when externally or internally stimulated, they react by releasing neurotransmitters that bind to specific proteins. Common examples of endogenous s...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61K31/4545A61K31/404A61P25/24A61P3/04A61P25/00A61K31/454A61K31/4709A61K31/496A61K31/497A61K31/52A61K31/5377A61K31/541A61P15/08A61P25/22C07D401/12C07D401/14C07D409/14C07D413/02C07D417/02C07D473/02
CPCC07D401/12C07D409/14C07D401/14A61P15/08A61P25/00A61P25/22A61P25/24A61P3/04
Inventor CARRUTHERS, NICHOLAS I.CHAI, WENYINGDAX, SCOTT L.JABLONOWSKI, JILL A.LI, XIAOBINGLOVENBERG, TIMOTHY W.MURRAY, WILLIAM V.RUDOLPH, DALE A.SEIERSTAD, MARKYOUNGMAN, MARK A.
Owner CARRUTHERS NICHOLAS I
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