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

Organoarsenic compound and use thereof

A compound, organic arsenic technology, applied in the field of medicine, can solve problems such as drug obstruction

Active Publication Date: 2019-02-22
LANZHOU UNIVERSITY
View PDF3 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the toxicity of arsenic compounds to the human body, it was hindered as a drug. Until the 1980s, clinical studies showed that inorganic arsenic compounds, namely arsenic trioxide, could relieve the symptoms of patients with acute promyelocytic leukemia. This led to a new dawn of arsenic as the basis of drug molecules

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
  • Organoarsenic compound and use thereof
  • Organoarsenic compound and use thereof
  • Organoarsenic compound and use thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0038] ①Preparation of m-nitrophenylfluoroborate diazonium salt: firstly, 31.5mL of concentrated hydrochloric acid and 25mL of water were mixed uniformly, and then 17.25g of m-nitroaniline was added into it, and stirred uniformly. Placed in a low temperature reactor, 0 degrees Celsius. When the cooling is complete, the sodium nitrite solution (8.65 g of sodium nitrite dissolved in 20 mL of water) is dropped into the above ice bath solution, and the end point is indicated by starch potassium iodide. After the diazonium salt is prepared, the sodium fluoroborate solution (27.5 g of sodium fluoroborate dissolved in 55 mL of water) is still dropped into the diazonium salt solution in a low temperature reactor at 0 degrees Celsius. It can be observed that the reaction solution is getting more and more turbid and thick. After 30 minutes of reaction, the reaction is lifted, suction filtration is carried out, and the liquid is no longer left after suction filtration, and the filter cak...

Embodiment 1

[0064] Target:

[0065] Mix 30 mL of methanol and 24 mL of concentrated hydrochloric acid, then add 13.2 g of roxarsone into it, and finally add 100 mg of potassium iodide. During the stirring process, sulfur dioxide gas is introduced, and the reaction is terminated for about half an hour. Stir under ice bath conditions, and slowly add concentrated ammonia water. , until the pH is approximately equal to 8, the reaction solution is allowed to stand, the reaction solution is layered, the upper layer liquid is poured out, a viscous yellow solid is obtained in the lower layer, and ethanol is added to dissolve the viscous substance. During the dropwise addition, a large amount of bright yellow solid precipitates were generated. After the dropwise addition, the reaction was refluxed for half an hour, cooled, and the solid product was filtered. The filter cake was rinsed with ethanol, and the filtrate was combined for column chromatography to obtain 5.7 g of product. This product w...

Embodiment 2

[0070] Target:

[0071] Mix 30 mL of methanol and 24 mL of concentrated hydrochloric acid, then add 10.9 g of p-aminophenylarsenic acid to it, and finally add 100 mg of potassium iodide. During the stirring process, sulfur dioxide gas is introduced, and the reaction is terminated for about half an hour. At this time, the solution is in a turbid state. Suction filtration, add the filter residue to the flask, add concentrated ammonia water to adjust the pH to about 8, and suction again to obtain an off-white solid product, which is added to a round-bottomed flask, and then an appropriate amount of ethanol and ethanedithiol are added, and refluxed for half an hour , a white final product was obtained after column chromatography.

[0072] The reaction is as follows:

[0073]

[0074] Yield: 47%; 1 H NMR (CDCl 3 , 400MHz) δ: 7.441-7.408 (d, 2H, J=8.4Hz, Ar-H), 6.679-6.646 (d, 2H, J=8.4Hz, Ar-H), 3.792 (s, 2H, NH 2 -H), 3.380-3.310 (m, 2H, -S- CH 2 -CH 2 -S-), 3.252-3.1...

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

No PUM Login to View More

Abstract

The invention discloses an organoarsenic compound. The organoarsenic compound has the following structural formula as shown in the specification, wherein n is 1 or 2; R, R1, R2, R3, R4 and R5 are respectively and independently amino, R6-CO-NH, R7-CO-O, alkyl, aryl, a heterocyclic substituent, alkoxyl, alkylamino, a halogen atom, nitro, hydroxyl or a hydrogen atom; R6 is alkyl, aminoalkyl or aryl;R7 is alkyl, aminoaryl or aryl. The organoarsenic compound has good inhibitory activity for thioredoxin reductase, has strong cytotoxicity for tumor cell HL-60, and can be used for preparing a thioredoxin reductase inhibitor or an antitumor drug with thioredoxin reductase as a target spot.

Description

technical field [0001] The invention belongs to the field of medicine, and in particular relates to an organic arsenic compound and use thereof. Background technique [0002] Arsenic is widely distributed in the earth as a semi-metal or non-metal element, and most of arsenic exists in sulfur-containing or metal-containing minerals. Arsenic-based molecules have been used for centuries as pharmaceutical therapeutic agents, such as in the treatment of psoriasis, leukemia, syphilis and rheumatism. However, due to the toxicity of arsenic compounds to the human body, their use as drugs has been hindered to some extent. Until the 1980s, clinical studies showed that inorganic arsenic compounds, namely arsenic trioxide, could relieve the symptoms of patients with acute promyelocytic leukemia. This led to a new dawn of arsenic as the basis for drug molecules. Organoarsenic molecules usually contain carbon atoms that form covalent bonds with arsenic, and carbon atoms can form differe...

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): C07F9/80A61P35/00A61P35/02
CPCA61P35/00A61P35/02C07F9/80
Inventor 房建国宋子龙张军民刘亚萍
Owner LANZHOU UNIVERSITY
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