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A kind of arginine substituted phthalocyanine derivative and its synthesis method and application

A phthalocyanine derivative and arginine technology, applied in the field of photosensitizers, can solve the problems of non-targeting of tumor cells and non-specific targeting of tumor tissues, and achieve inhibition of adhesion and proliferation, good application prospects, and dark toxicity. low effect

Active Publication Date: 2018-04-24
NANJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, generally positively charged phthalocyanines are in the form of quaternary ammonium salts, and the preparation process requires the use of highly toxic methylating reagents (such as methyl iodide), and the prepared quaternary ammonium phthalocyanines have no target for tumor cells. sex
Protonated aminophthalocyanine is also positively charged in water, the preparation process is relatively simple, and no toxic methylating reagent is needed, but its chargeability is very easily affected by pH, it is easy to deprotonate in physiological environment, and it is harmful to tumors. Tissue-specific targeting

Method used

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  • A kind of arginine substituted phthalocyanine derivative and its synthesis method and application
  • A kind of arginine substituted phthalocyanine derivative and its synthesis method and application
  • A kind of arginine substituted phthalocyanine derivative and its synthesis method and application

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Embodiment 1

[0042] (1) Under the protection of nitrogen, 4-nitrophthalonitrile, 4-hydroxybenzoic acid and basic catalyst are stirred and reacted at a molar ratio of 1:1:2, and DMF is used as a solvent, and the reaction is carried out at 40°C for 6 hours to obtain ortho Phthalonitrile intermediate 1;

[0043] (2) Under nitrogen protection, with n-amyl alcohol as solvent, Zn(OAc) 2 , The molar ratio of phthalonitrile intermediate 1 to DBU is 1:2:3; the reaction temperature is 120°C-140°C, the reaction time is 24h, the reaction solution is cooled to room temperature, and the solvent is distilled off under reduced pressure. The solid was dissolved with KOH aqueous solution, treated under reflux for 6 h and then cooled to room temperature. The filter cake was collected by filtration. The filter cake was dissolved with alkali again, and the insoluble part was removed by filtration. The pH of the filtrate was adjusted to be acidic to precipitate the product. The solid was collected after rep...

Embodiment 2

[0047] (1) Under the protection of nitrogen, 4-nitrophthalonitrile, 4-hydroxybenzoic acid and basic catalyst are stirred and reacted in a molar ratio of 1:3:4, and DMF is used as a solvent, and the reaction is carried out at 40°C for 6h to obtain ortho Phthalonitrile intermediate 1;

[0048] (2) Under the protection of nitrogen, with n-amyl alcohol as solvent, Cu(Ac) 2 , The molar ratio of phthalonitrile intermediate 1 to DBU is 1:2:4; the reaction temperature is 120°C-140°C, the reaction time is 24h, the reaction solution is cooled to room temperature, and the solvent is distilled off under reduced pressure. The solid was dissolved with KOH aqueous solution, treated under reflux for 6 h and then cooled to room temperature. The filter cake was collected by filtration. The filter cake was dissolved with alkali again, and the insoluble part was removed by filtration. The pH of the filtrate was adjusted to be acidic to precipitate the product. The solid was collected after re...

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Abstract

The invention discloses arginine-substituted phthalocyanine derivatives and a synthesis method thereof, and application of the arginine-substituted phthalocyanine derivatives in photodynamic therapeutics. The structure of the arginine-substituted phthalocyanine derivatives is disclosed as the following formula in the specification. The synthesis method of the arginine-substituted phthalocyanine derivatives is simple, and does not need any toxic methylation reagent; and the arginine-substituted phthalocyanine derivatives are positively charged under physiological conditions, have the advantages of high active oxygen generation capacity, favorable photosensitive antineoplastic activity and low dark toxicity, and thus, have favorable application prospects in photodynamic therapeutics.

Description

technical field [0001] The invention belongs to the technical field of photosensitizers with photodynamic activity, and relates to a phthalocyanine derivative, in particular to an arginine-substituted phthalocyanine derivative, its synthesis method and its application in photodynamic therapy. Background technique [0002] Photodynamic therapy (PDT), also known as photosensitive therapy and photochemotherapy, is a new method developed in recent years to treat tumors with photochemical reactions. The treatment process is as follows: the photosensitizer is injected into the patient's body, transmitted through the blood, and after a period of metabolism, the photosensitizer is selectively retained in the diseased tissue. Then, the lesion tissue is irradiated with light that matches the wavelength of the photosensitizer, and the photosensitizer undergoes a photodynamic reaction with the participation of oxygen, thereby exerting curative effect and finally killing tumor cells. PD...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D487/22A61K41/00A61P35/00
CPCA61K41/0076C07D487/22
Inventor 魏少华周蓉蓉王傲周林周家宏
Owner NANJING NORMAL UNIVERSITY