Tanshinone IIA phosphate phenolic ester derivative and preparation process thereof

A technology of phenolic phosphate and tanshinone, which can be used in drug combinations, pharmaceutical formulations, steroids, etc., can solve the problems of difficult biofilm structure system, unsuitable for the treatment of cerebrovascular diseases, etc., and achieve good water solubility and broad application value. Effect

Active Publication Date: 2013-11-06
江苏新本草医药研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] An early example of a relatively successful structural transformation of tanshinone IIA in terms of solubility was the sulfonation of tanshinone IIA sulfonic acid sodium salt. Although the solubility problem was solved, the p

Method used

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  • Tanshinone IIA phosphate phenolic ester derivative and preparation process thereof
  • Tanshinone IIA phosphate phenolic ester derivative and preparation process thereof
  • Tanshinone IIA phosphate phenolic ester derivative and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Weigh 2.94g of tanshinone IIA raw material into a 100ml three-necked bottle, add about 160mg of 10% palladium carbon (Pd / C), dissolve in about 30ml of anhydrous THF, stir at room temperature under the protection of hydrogen until the color of the solution fades. First add about 5.8ml of triethylamine into the reaction flask, and slowly add 8.7ml of diethylphosphoryl chloride dropwise under cooling in an ice-water bath. After the dropwise addition, the mixture was stirred at room temperature for 24 hours to terminate the reaction. The reaction solution was diluted with ethyl acetate and poured into 100 ml of ice water. After standing still, the organic layer was separated, and the aqueous layer was extracted 1-2 times with an equal volume of ethyl acetate, and the organic layers were combined, washed with water, and anhydrous Na 2 SO 4 Dry and evaporate to dryness to obtain the intermediate of tanshinone ⅡA phosphoryl diethyl ester.

[0057] The compound was dissolved ...

Embodiment 2

[0064] Weigh 2.94g of tanshinone IIA raw material into a 100ml three-neck flask, add about 300mg of 5% Pd / C, dissolve in about 50ml of anhydrous ethyl acetate, stir at room temperature under the protection of hydrogen until the color of the solution fades. 500 mg of sodium hydride was added to the reaction flask, and after reacting at room temperature for 2 hours, 9.5 g of dibenzylphosphoryl chloride was slowly added dropwise under cooling in an ice-water bath. After the dropwise addition, stir at room temperature for 12 hours, pour the reaction solution into 100 ml of ice water, let stand and separate the organic layer, and extract the water layer with an equal volume of ethyl acetate for 1-2 times. Combined organic layers, washed with water, anhydrous Na 2 SO 4 Dry and evaporate to dryness to obtain the intermediate of tanshinone ⅡA phosphoryl dibenzyl ester. This compound was dissolved in 50ml of anhydrous methanol, about 500mg of 5% Pd / C was added, and hydrogen gas was p...

Embodiment 3

[0071] Weigh 2.94g of tanshinone IIA raw material into a 100ml three-neck flask, add about 160mg of 10% Pd / C, dissolve in about 30ml of anhydrous THF, stir at room temperature under the protection of hydrogen until the color of the solution fades. First add about 3ml of triethylamine into the reaction flask, then slowly add about 5.5g of dibenzylphosphoryl bromide dropwise under cooling in an ice-water bath, and control the reaction temperature at about 25°C. After the dropwise addition was completed, the mixture was stirred at room temperature for 10 hours. The reaction solution was diluted with 30 ml of ethyl acetate and poured into 100 ml of ice water. After standing still, the organic layer was separated, and the aqueous layer was extracted 1-2 times with an equal volume of ethyl acetate, and the organic layers were combined, washed with water, and anhydrous Na 2 SO 4 Dry and evaporate to dryness to obtain the intermediate of tanshinone ⅡA monophosphoryl dibenzyl ester. ...

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Abstract

The invention relates to a tanshinone IIA phosphate phenolic ester derivative and a preparation process thereof. The derivative and the preparation process thereof have the advantages that firstly, the new derivative of tanshinone IIA is provided, and the new substance can serve as a drug for treating cerebrovascular diseases; secondly, the tanshinone IIA phosphate phenolic ester derivative is good in water solubility and can be produced into injections conveniently. Animal experiments indicate that the tanshinone IIA phosphate phenolic ester derivative has a good pesticide effect on mouse middle cerebral artery occlusion (MCAO) through intraperitoneal injection and can be developed into the new drug for treating the cerebrovascular diseases, particularly the injection-type drug for treating the cerebrovascular diseases. The derivative serves as an important prodrug and has the high application value clinically.

Description

technical field [0001] The invention relates to the field of medicinal chemistry, in particular to a tanshinone IIA phosphate phenol ester derivative and a preparation method thereof. Background technique [0002] Cerebrovascular disease is a general term for cerebral vascular diseases caused by various etiologies. According to different forms of onset, it is divided into two types: acute cerebrovascular disease (also known as stroke) and chronic cerebrovascular disease. Common diseases and frequently-occurring diseases with high disability rate. At present, China has entered an aging society, and cerebrovascular disease has become a serious disease that harms middle-aged and elderly people. The morbidity and fatality rates are increasing year by year, and they are getting younger. [0003] Drugs for the treatment of cerebrovascular diseases are relatively scarce in clinical practice. At present, the drugs for the prevention and treatment of cerebrovascular diseases are mai...

Claims

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Application Information

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IPC IPC(8): C07J73/00A61K31/665A61P9/10
Inventor 周长新甘礼社朱志彬
Owner 江苏新本草医药研究院有限公司
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