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Application of composition of benzimidazolyl and bis(2-methylthioethyl) amino derivatives of Salviskinone A in anti-liver fibrosis drugs

A technology of liver fibrosis and composition, applied in the fields of organic synthesis and medicinal chemistry, can solve problems such as lack of clinical treatment methods

Inactive Publication Date: 2016-08-03
NANJING FUHAIAOSAI PHARMA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, some anti-hepatic fibrosis treatments have emerged, including chemical drugs, biological agents, traditional Chinese medicine and gene therapy, etc., but the ideal clinical treatment methods are still lacking (Liu Ping. Strengthen the research on the mechanism of anti-hepatic fibrosis. Chinese liver disease Magazine, 2005, 8(13): 561)

Method used

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  • Application of composition of benzimidazolyl and bis(2-methylthioethyl) amino derivatives of Salviskinone A in anti-liver fibrosis drugs
  • Application of composition of benzimidazolyl and bis(2-methylthioethyl) amino derivatives of Salviskinone A in anti-liver fibrosis drugs
  • Application of composition of benzimidazolyl and bis(2-methylthioethyl) amino derivatives of Salviskinone A in anti-liver fibrosis drugs

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Experimental program
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Effect test

Embodiment 1

[0015] The preparation of embodiment 1 compound SalviskinoneA

[0016] The preparation method of the compound Salviskinone A (I) refers to the method published by Ayumi Ohsaki et al. (Ayumi Ohsaki et al., 2011. Salviskinone A, aditerpenewithanewskeleton from Salviaprzewalskii. Tetrahedron Letters 52 (2011) 1375-1377).

[0017]

Embodiment 2

[0018] The synthesis of the O-bromoethyl derivative (II) of embodiment 2SalviskinoneA

[0019] Compound I (312 mg, 1.00 mmol) was dissolved in 15 mL of benzene, and tetrabutylammonium bromide (TBAB) (0.08 g), 1,2-dibromoethane (3.760 g, 20.00 mmol) and 6 mL of 50% sodium hydroxide solution. The mixture was stirred at 35 °C for 12 h. After 12 hours, the reaction solution was poured into ice water, extracted twice with dichloromethane immediately, and the organic phase solutions were combined. Then the organic phase solution was washed with water and saturated brine four times successively, then dried with anhydrous sodium sulfate, and finally concentrated under reduced pressure to remove the solvent to obtain a crude product. The crude product was purified by silica gel column chromatography (mobile phase: petroleum ether / acetone=100:1.5, v / v), the brown concentrated elution band was collected and the solvent was evaporated to obtain a brown powder of Compound II (327mg, 78%)...

Embodiment 3

[0024] The synthesis of the O-(benzimidazolyl) ethyl derivative (III) of embodiment 3SalviskinoneA

[0025] Compound II (209mg, 0.5mmol) was dissolved in 20mL of acetonitrile, anhydrous potassium carbonate (345mg, 2.5mmol), potassium iodide (84mg, 0.5mmol) and benzimidazole (1180mg, 10mmol) were added thereto, and the mixture was heated to reflux for 5h . After the reaction was completed, the reaction solution was poured into ice water, extracted three times with an equal amount of dichloromethane, and the organic phases were combined. The combined organic phases were successively washed with water and saturated brine, dried over anhydrous sodium sulfate, and concentrated under reduced pressure to remove the solvent to obtain a crude product. The crude product was purified by silica gel column chromatography (mobile phase: petroleum ether / acetone=100:1.5, v / v), and the concentrated brown elution band was collected and concentrated to give compound III as a brown solid (215 mg...

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Abstract

The invention relates to the field of organic synthesis and medicinal chemistry and discloses a composition consisting of benzimidazolyl and bis(2-methylthioethyl) amino derivatives of Salviskinone A in a mass ratio of 55:45 and a method for mixing the compounds in a mass ratio of 55:45 to prepare the composition. Pharmacological experiments indicate that the composition provided by the invention in a concentration of 20mu g / ml can remarkably inhibit the NIH / 3T3 proliferation and the fibroblast proliferation induced by transforming growth factor-beta1, and realizes an anti-liver fibrosis effect; and therefore, the invention also provides an application of the composition consisting of benzimidazolyl and bis(2-methylthioethyl) amino derivatives of Salviskinone A in a mass ratio of 55:45 in preparing anti-liver fibrosis drugs.

Description

technical field [0001] The invention relates to the fields of organic synthesis and medicinal chemistry, in particular to a composition, a preparation method and an application thereof. Background technique [0002] Liver fibrosis is a dynamic process from chronic liver injury to liver cirrhosis, manifested in the synthesis and secretion of a large amount of extracellular matrix (ECM), while the degradation is absolutely or relatively insufficient, resulting in the diffuse deposition of ECM in the liver. It starts with necrosis of hepatocytes (HC), followed by inflammatory response, release of fibrogenesis mediators, activation of hepatic stellate cells (FSC), and finally, the synthesis and degradation of liver connective tissue components are obviously out of balance. Liver fibrosis is a common pathological process of many chronic liver diseases and an important factor affecting prognosis. [0003] In the past 20 years, the study of liver fibrosis has made great progress, ...

Claims

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Application Information

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IPC IPC(8): A61K31/4184A61P1/16C07D235/08C07C323/25A61K31/145
CPCA61K31/145A61K31/4184C07C323/25C07D235/08A61K2300/00
Inventor 王卓婷
Owner NANJING FUHAIAOSAI PHARMA CO LTD
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