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A novel heterocyclic aromatic hydrazone derivative, its pharmaceutically acceptable salt, its preparation method and application

A technology of heterocyclic aromatic hydrazones and derivatives, which is applied in the field of medicine, can solve the problems of drugs with low toxic and side effects, and achieve the effects of low toxic and side effects, simple synthesis, and novel preparation methods

Active Publication Date: 2022-02-15
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are few drugs that use the degradation of tumor ferritin to play an anti-tumor effect and have little toxic side effects

Method used

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  • A novel heterocyclic aromatic hydrazone derivative, its pharmaceutically acceptable salt, its preparation method and application
  • A novel heterocyclic aromatic hydrazone derivative, its pharmaceutically acceptable salt, its preparation method and application
  • A novel heterocyclic aromatic hydrazone derivative, its pharmaceutically acceptable salt, its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Example 1: 5-(4-Chlorophenyl)-2-(2-(bis(pyridin-2-yl)methylene)hydrazino)thiazole

[0050]

[0051] 4-(4-chlorophenyl)-2-(2-(di(pyridin-2-yl)methylene)hydrazineyl)thiazole

[0052] Preparation method: In a fume hood, under dry conditions, in a 25mL single-necked round bottom flask, add 10mmol of dipyridone and 10.25mmol of thiosemicarbazide to 10ml of absolute ethanol, and then add two drops of ice Acetic acid catalyst, stirred and reacted at 80°C for about 4 hours, TLC followed the reaction, after the reaction was completed, let it stand for cooling, the precipitated solid was filtered and dried, then dissolved and recrystallized with absolute ethanol, and the recrystallized white crystal was obtained as intermediate.

[0053] Take 0.25mmol of the above-mentioned intermediate and place it in a 25mL single-necked round-bottom flask, add 5ml of ethanol to dissolve, then add α-bromo-4-chloroacetophenone, add a magnet, stir the reaction at room temperature, and follow ...

Embodiment 2

[0056] Example 2: 2-(2-(bis(pyridin-2-yl)methylene)hydrazino)-5-(3,4-dichlorophenyl)thiazole

[0057]

[0058] 2-(2-(di(pyridin-2-yl)methylene)hydrazineyl)-4-(3,4-dichlorophenyl)thiazole

[0059] The preparation method is the same as in Example 1, except that the α-bromo-4-chloroacetophenone in Example 1 is replaced by α-bromo-3,4-dichloroacetophenone to obtain the yellow powder target compound. The combined yield of the two steps is 85%. Confirmation data for the target compound: 1 H NMR (600MHz, DMSO-d 6 )δ8.93(d, J=5.2Hz, 1H), 8.60(d, J=5.0Hz, 1H), 8.15(t, J=7.8Hz, 1H), 8.10–8.03(m, 2H), 7.98( d,J=8.0Hz,1H),7.84(d,J=8.2Hz,1H),7.76–7.69(m,2H),7.67(d,J=9.1Hz,2H),7.57–7.51(m,1H ).

Embodiment 3

[0060] Example 3: 4-(2-Chlorophenyl)-2-(2-(bis(pyridin-2-yl)methylene)hydrazino)thiazole

[0061]

[0062] 4-(2-chlorophenyl)-2-(2-(di(pyridin-2-yl)methylene)hydrazineyl)thiazole

[0063] The preparation method is the same as in Example 1, except that α-bromo-2-chloroacetophenone is used instead of α-bromo-4-chloroacetophenone in Example 1 to obtain the yellow powdery target compound. The combined yield of the two steps is 82%. Confirmation data for the target compound: 1 H NMR (600MHz, DMSO-d 6 )δ14.14 (s, 1H), 8.90 (d, J = 5.1Hz, 1H), 8.60 (d, J = 4.8Hz, 1H), 7.99 (q, J = 6.9, 6.4Hz, 2H), 7.96- 7.89(m, 2H), 7.86(d, J=7.8Hz, 1H), 7.65(s, 1H), 7.62(d, J=8.0Hz, 1H), 7.58(dd, J=7.6, 5.0Hz, 1H ), 7.50-7.43(m, 2H), 7.38(dd, J=8.0, 2.1Hz, 1H).

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Abstract

The present invention relates to a novel heterocyclic arylhydrazone derivative, its pharmaceutically acceptable salt, its preparation method and application. Construct; In the general structural formula I, R represents an aromatic hydrocarbon, a heterocyclic ring or a substituent having both an aromatic hydrocarbon and a heterocyclic ring; R 1 is a heterocycle. The present invention adds a heterocycle such as thiophene to one side of the hydrazone, and introduces at least one pyridine group on the carbon atom on the other side. These parts are all drug active groups in different fields, and these targets are passed through The specific connection relationship makes it a whole, forming a new drug, which has excellent anticancer activity, and has little toxic and side effects. Its synthesis is simple and convenient, and it is preferably applied in industrial production.

Description

technical field [0001] The invention relates to the technical field of medicine, in particular to novel heterocyclic aromatic hydrazone derivatives, novel heterocyclic aromatic hydrazone derivatives for preventing and treating tumors, pharmaceutically acceptable salts thereof, and preparation methods and applications thereof. Background technique [0002] Cancer is a disease with a very high fatality rate, and many types of cancer cannot be cured. Therefore, anti-tumor drugs have always been the research focus and hotspot in the fields of medicine, chemistry, optics or interdisciplinary technology. At present, there are many drugs or potential drugs with anti-cancer activity. Most of the anti-cancer drugs used clinically interfere with or block the proliferation process of cells. They are generally called cytotoxic drugs. Chemotherapy drugs are roughly divided into the following categories according to their action 4 categories. (1) Inhibition of DNA synthesis: Interfering ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D417/14C07D417/12A61P35/00
CPCC07D417/14C07D417/12A61P35/00
Inventor 闫超黄腾飞徐天琦
Owner NANJING UNIV
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