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Meta-substituted tetrazole acetophenone as well as preparation method and usage thereof

A compound and general formula technology, applied in organic chemistry, drug combination, blood diseases, etc., can solve problems such as high bleeding risk

Inactive Publication Date: 2014-10-01
胡万
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of these drugs is the greater risk of bleeding

Method used

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  • Meta-substituted tetrazole acetophenone as well as preparation method and usage thereof
  • Meta-substituted tetrazole acetophenone as well as preparation method and usage thereof
  • Meta-substituted tetrazole acetophenone as well as preparation method and usage thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] .

[0032] Reaction raw materials: self-made, conventional method.

[0033] 1.60g (10 mmol) compound II-1 , 3.70 g (10 mmol) compound III-1 and 4.15 g (30 mmol) of solid potassium carbonate were stirred overnight in 20 mL of acetonitrile, and then heated to reflux for 3 hours.

[0034] The reaction mixture was cooled slightly and poured into 200 mL ice water, stirred, adjusted to pH = 4 with concentrated hydrochloric acid, extracted with 50 mL × 3 dichloromethane, combined organic phases, washed with brine, dried over anhydrous sodium sulfate, and dried on a rotary evaporator The solvent was evaporated, and the obtained residue was purified by column chromatography to obtain pure I-1 , yellow-white solid, MS, m / z = 472([M+Na] + ).

Embodiment 2-5

[0036] According to the method of Example 1, synthesized with general formula I of the following compounds:

[0037] 。

Embodiment 6

[0038] Example 6 In vitro platelet aggregation inhibition test

[0039] Pharmacological testing of substances in TRAP (thrombin receptor activating peptide)-induced platelet aggregation in 96-well plates. 3.13% sodium citrate solution was pre-added in the syringe, and then 20 mL of blood from healthy volunteers was drawn in, at 1500 g Platelet-rich plasma (PRP) was separated by centrifugation for 20 minutes and treated with 1 μL PGE1 solution (500 μg / mL in ethanol) / mL PRP. After incubation at room temperature for 5 minutes, they were centrifuged at 1200 g for 20 minutes to remove leukocytes. Transfer the leukocyte-free PRP to 15 mL PP tubes in batches at 5 mL / portion, and centrifuge at 3600 g to pellet the platelets. Then, decant the upper plasma layer and resuspend the platelet pellet from 5 mL of PRP in 1 mL of Tyrode (120 mM NaCl, 2.6 mM KCl, 12 mM NaHCO3, 0.39 mM NaH2PO4, 10 mM HEPES, 0.35% BSA, 5.5 mM Glucose, pH = 7.4), and Tyrode adjusted to a platelet count of 3 x...

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PUM

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Abstract

The invention relates to the field of medicine related to thrombotic diseases, in particular to a meta-substituted PAR-1 agonist containing tetrazole acetophenone, a preparation method of the agonist, medicine composition containing the agonist, and application of the medicine composition in preparing medicine treating thrombotic diseases. The formula I is shown in the specification. The R group is defined in the specification.

Description

technical field [0001] The invention relates to the field of drugs related to thrombosis diseases. Specifically, the present invention relates to a class of PAR-1 antagonists containing a tetrazole acetophenone structure, a preparation method thereof, and a pharmaceutical composition containing them, which have a therapeutic effect on thrombotic diseases. Background technique [0002] Protease Activated Acceptor-1 (PAR-1) is a new target of anti-platelet antithrombotic drugs discovered recently. Protease-activated receptor 1 is also called thrombin receptor. After thrombin is activated by the coagulation chain, it acts on platelets through PAR-1 receptors to activate platelets, causing platelet aggregation and causing thrombus and coagulation. The thrombus induced by PAR-1 is rich in platelet components, which is the main cause of arterial thrombus. PAR-1 antagonists can block thrombin from activating platelets, thereby blocking arterial thrombus formation, and can be used...

Claims

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Application Information

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IPC IPC(8): C07D257/04A61P7/02
CPCC07D257/04
Inventor 张远强
Owner 胡万
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