Soluble guanylate cyclase activators

a technology of guanylate cyclase and activator, which is applied in the field of soluble guanylate cyclase activator, can solve the problems of increased dosage, increased tolerance and activity, and poisons that have a predominantly weak effect on cgmp formation, and achieve the effect of suitable for disease therapy and prophylaxis

Inactive Publication Date: 2009-08-20
MERCK SHARP & DOHME CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008]The present invention relates to compounds which activate soluble guanylate cyclase which are valuable pharmaceutically active compounds for the therapy and prophylaxis of diseases, for example for cardiovascular diseases such as hypertension, angina pectoris, diabetes, cardiac insufficiency, thromboses or atherosclerosis. The compounds of the formula I are capable of modulating the body's production of cyclic guanosine monop

Problems solved by technology

The drawback of this treatment is the development of tolerance and a reduction of activity, and the higher dosage which is required because of this.
However, the compounds, most of

Method used

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  • Soluble guanylate cyclase activators
  • Soluble guanylate cyclase activators
  • Soluble guanylate cyclase activators

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0184]

Step A. Ethyl-1-(6-chloropyridin-2-yl)-5-trifluoromethyl-1H-pyrazole-4-carboxylate

[0185]To a solution 2-chloro-6-hydrazinopyridine (1.00 g, 6.97 mmol) and triethylamine (0.971 mL, 6.97 mmol) in acetonitrile (35 mL) was added ethyl 2-(ethoxymethylene)-4,4,4-trifluoro-3-oxobutyrate (1.36 mL, 6.97 mmol). After 20 min, the reaction mixture was placed in a 60° C. oil bath. After 30 min, the reaction mixture was allowed to cool to ambient temperature, then was concentrated in vacuo. Purification by flash chromatography on silica gel (0 to 30% EtOAc in hexanes, then 30 to 100% EtOAc in hexanes) gave the title compound: LCMS m / z 319.9 [M+H]+; 1H NMR (500 MHz, CDCl3) δ 8.10 (s, 1H), 7.88 (t, J=7.5 Hz, 1H), 7.58 (d, J=8.0 Hz, 1H), 7.47 (d, J=8.0 Hz, 1H), 4.38 (q, J=7.0 Hz, 2H), 1.38 (t, J=7.0 Hz, 3H).

Step B. Ethyl 1-[6-(2-hydroxylphenyl)pyridine-2-yl]-5-trifluoromethyl-1H-pyrazole-4-carboxylate

[0186]To a flask containing the title compound from the Example 1 Step A (500 mg, 1.56 mmol) w...

example 2

[0189]

Step A. Ethyl 1-(6-{2-[(4-bromobenzyl)oxy]phenyl}pyridin-2-yl)-5-(trifluoromethyl)-1H-pyrazole-4-carboxylate

[0190]To a solution of the title compound from Example 1 Step B (682 mg, 1.81 mmol) in DMF (10 mL) were added 4-bromobenzyl bromide (678 mg, 2.71 mmol) and cesium carbonate (1.77 g, 5.42 mmol). After 1.5 h, the reaction mixture was poured into sat. aq. NH4Cl and extracted with EtOAc. The organic phase was separated, dried over sodium sulfate, filtered, and concentrated in vacuo. Purification by flash chromatography on silica gel (0 to 25% EtOAc in hexanes, then 25 to 100% EtOAc in hexanes) provided the title compound: LCMS m / z 548.0 [M+H]+; 1H NMR (500 MHz, CDCl3) δ 8.13 (s, 1H), 8.08 (d, J=8.0 Hz, 1H), 7.95 (dd, J=7.5, 1.5 Hz, 1H), 7.88 (t, J=8.0 Hz, 1H), 7.54 (d, J=8.0 Hz, 1H), 7.48 (d, J=8.0 Hz, 2H), 7.39-7.36 (m, 1H), 7.23 (d, J=8.0 Hz, 2H), 7.12 (t, J=7.5 Hz, 1H), 7.03 (d, J=7.5 Hz, 1H), 5.10 (s, 2H), 4.39 (q, J=7.0 Hz, 2H), 1.39 (t, J=7.0 Hz, 3H).

Step B. Ethyl 5-(t...

example 3

[0193]

Step A. Ethyl 5-(trifluoromethyl)-1-(6-{2-[(4-{(E)-2-[4-(trifluoromethyl)phenyl]vinyl}benzyl)oxy]phenyl}pyridin-2-yl)-1H-pyrazole-4-carboxylate

[0194]To a vial containing the title compound from Example 2 Step A (50.0 mg, 0.092 mmol) were added 2-(4-trifluoromethylphenyl)vinyl boronic acid (29.6 mg, 0.137 mmol) and trans-dichlorobis(triphenylphosphine) palladium (II) (6.4 mg, 0.009 mmol). Acetonitrile (0.400 mL) and sodium carbonate (0.229 mL, 1.0 M aqueous, 0.229 mmol) were added, and the resulting mixture was degassed via nitrogen sparge. The reaction vial was capped and placed in a pre-heated oil bath (70° C.). After 18 h, the reaction mixture was allowed to cool to ambient temperature and was poured into water. The mixture was extracted with DCM, and the organic phase was concentrated in vacuo. Purification by chromatography on silica gel (0 to 30% EtOAc in hexanes, then 30 to 100% EtOAc in hexanes) provided the title compound: LCMS m / z 638.4 [M+H]+; 1H NMR (500 MHz, CDCl3)...

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Abstract

A compound having the structure
useful for treatment or prevention of cardiovascular diseases, endothelial dysfunction, diastolic dysfunction, atherosclerosis, hypertension, angina pectoris, thromboses, restenoses, myocardial infarction, strokes, cardiac insufficiency, pulmonary hypertonia, erectile dysfunction, asthma bronchiale, chronic kidney insufficiency, diabetes, or cirrhosis of the liver in a human or animal patient.

Description

BACKGROUND OF THE INVENTION[0001]Cyclic GMP is an important intracellular messenger which triggers a multitude of different effects via the modulation of cGMP-dependent protein kinases, phosphodiesterases and ion channels. Examples are the relaxation of smooth muscles, the inhibition of thrombocyte activation and the inhibition of the proliferation of smooth-muscle cells and of leukocyte adhesion. cGMP is produced by particulate and soluble guanylate cyclases as a response to a number of extracellular and intracellular stimuli. In the case of the particulate guanylate cyclases, stimulation is essentially effected by peptidic messengers, such as the atrial natriuretic peptide or the cerebral natriuretic peptide. The soluble guanylate cyclases (“sGC”), which are cytosolic heterodimeric heme proteins, in contrast, are essentially regulated by a family of low-molecular-weight factors which are formed enzymatically. The most important stimulant is nitrogen monoxide (“NO”) or a closely re...

Claims

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Application Information

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IPC IPC(8): A61K31/497A61K31/4545A61K31/4439C07D403/04C07D401/14C07D401/04A61P9/00
CPCC07D401/04C07D401/14C07D403/04C07D403/14C07D417/14C07D409/14C07D413/14C07D417/04C07D405/14A61P1/16A61P3/06A61P3/10A61P7/02A61P7/10A61P9/00A61P9/04A61P9/08A61P9/10A61P9/12A61P11/06A61P13/12A61P15/10A61P43/00
Inventor BITTNER, AMY R.SINZ, CHRISTOPHER JOSEPHCHANG, JIANGKIM, RONALD M.MIRC, J. W.PARMEE, EMMA R.TAN, QIANG
Owner MERCK SHARP & DOHME CORP
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