Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

The-K(KAPRG)RGDV hendeca-peptide, as well as preparation, activity and application thereof

A technology of -z-lys, -obzl-asp, applied in the preparation of treatment of ischemic stroke, The-Lys-Arg-Gly-Asp-Val, the active field of treatment of ischemic stroke, can solve thrombolytic drug bleeding , reembolization, reperfusion injury, etc.

Active Publication Date: 2017-01-25
CAPITAL UNIVERSITY OF MEDICAL SCIENCES
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing thrombolytic drugs have problems such as bleeding, reembolization, and reperfusion injury, so finding new anti-ischemic stroke drugs has important application value

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • The-K(KAPRG)RGDV hendeca-peptide, as well as preparation, activity and application thereof
  • The-K(KAPRG)RGDV hendeca-peptide, as well as preparation, activity and application thereof
  • The-K(KAPRG)RGDV hendeca-peptide, as well as preparation, activity and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1 prepares Boc-Ala-Lys(Z)-OBzl(1)

[0032] Dissolve 2.08g (11mmol) Boc-Ala in 20mL anhydrous tetrahydrofuran (THF), add 1.35g (10mmol) 1-hydroxybenzotriazole (HOBt) and 2.47g (12mmol) dissolved in anhydrous THF under ice cooling Dicyclohexylcarbonyldiimide (DCC) was stirred for 0.5 hour to obtain reaction solution A. After 30 minutes, 4.07g (10mmol) HCl Lys(Z)-OBzl was dissolved in 15mL THF, and the pH was adjusted to 9 with N-methylmorpholine, then added to the reaction solution A, stirred at room temperature for 12 hours, TLC (Developer CHCl 3 :MeOH=30:1) showed that HCl·Lys(Z)-OBzl disappeared. The dicyclohexylurea (DCU) in the reaction solution was removed by filtration, the reaction solution was concentrated to dryness under reduced pressure, the residue was dissolved in 100 mL of ethyl acetate, and the insoluble matter was filtered off. The filtrate was successively washed 3 times with saturated aqueous sodium bicarbonate solution, 3 times with 5% aq...

Embodiment 2

[0033] Example 2 Preparation of HCl Ala-Lys(Z)-OBzl(2)

[0034] Dissolve 2.0g (3.7mmol) Boc-Ala-Lys(Z)-OBzl in a small amount of dry ethyl acetate, add 20mL of 4N hydrogen chloride-ethyl acetate solution under ice-salt bath, react under ice-cooling for 4 hours, TLC (CHCl 3 :MeOH, 30:1) showed that the raw material point disappeared and the reaction was complete. The reaction solution was concentrated under reduced pressure, and the residue was dissolved in ethyl acetate and concentrated under reduced pressure. This operation was repeated three times to remove free hydrogen chloride, and the residue was washed three times with anhydrous ether to obtain 1.6 g (90%) of the title compound as a colorless powder. ESI-MS(m / z): 442[M+H] + .

Embodiment 3

[0035] Embodiment 3 prepares Boc-Pro-Ala-Lys(Z)-OBzl(3)

[0036] Using the method of Example 1, 1.7 g (78%) of the title compound was obtained as a yellowish oil from 731 mg (3.4 mmol) of Boc-Pro and 1.8 g (3.3 mmol) of HCl·Ala-Lys(Z)-OBzl. ESI-MS(m / z): 639[M+H] + .

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
The inside diameter ofaaaaaaaaaa
The inside diameter ofaaaaaaaaaa
Outer diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses The-Lys(Lys-Ala-Pro-Arg-Gly)-Arg-Gly-Asp-Val hendeca-peptide, and discloses a preparation method of the The-Lys(Lys-Ala-Pro-Arg-Gly)-Arg-Gly-Asp-Val hendeca-peptide, activity of treating ischemic stroke, antithrombus activity and thrombolytic activity. Therefore, the invention discloses application of the The-Lys(Lys-Ala-Pro-Arg-Gly)-Arg-Gly-Asp-Val hendeca-peptide in preparation of ischemic stroke treatment, antithrombus and thrombolytic medicines.

Description

[0001] field of invention [0002] The present invention relates to The-Lys(Lys-Ala-Pro-Arg-Gly)-Arg-Gly-Asp-Val, to its preparation method, to its activity for treating ischemic stroke, antithrombotic activity and thrombolytic activity. Therefore, the present invention relates to its application in the preparation of antithrombotic and thrombolytic drugs for treating ischemic stroke. The invention relates to the field of biomedicine. Background technique [0003] Coronary heart disease, stroke, and vasculitis are very common cardiovascular and cerebrovascular diseases. With the continuous improvement of people's living standards, the incidence of cardiovascular and cerebrovascular diseases is increasing year by year. Risk factors for cardiovascular and cerebrovascular diseases are prevalent, and the prevalence of cardiovascular and cerebrovascular diseases in my country continues to rise. According to statistics, 1 out of every 5 adults suffers from cardiovascular disease....

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C07K7/06C07K1/02A61K38/08A61P9/10A61P7/02
Inventor 彭师奇赵明吴建辉王玉记武丽飞
Owner CAPITAL UNIVERSITY OF MEDICAL SCIENCES
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com