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Synthesis of benzsulfamide HDAC (Histone Deacetylase) inhibitor and application of benzsulfamide HDAC inhibitor in resisting tumor

A technology of p-toluenesulfonamide and a synthesis method, which is applied in the field of pharmaceutical synthesis and can solve the problems of not finding benzenesulfonamide compounds and the like

Inactive Publication Date: 2014-03-26
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the functional region of MS-275, benzamide plays an important role in the binding of zinc ions, and the transformation of the functional region has gradually attracted the attention of medicinal chemists. However, no information about replacing benzamide with benzenesulfonate has been found Synthesis and Application of Amide Compounds

Method used

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  • Synthesis of benzsulfamide HDAC (Histone Deacetylase) inhibitor and application of benzsulfamide HDAC inhibitor in resisting tumor
  • Synthesis of benzsulfamide HDAC (Histone Deacetylase) inhibitor and application of benzsulfamide HDAC inhibitor in resisting tumor
  • Synthesis of benzsulfamide HDAC (Histone Deacetylase) inhibitor and application of benzsulfamide HDAC inhibitor in resisting tumor

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Embodiment Construction

[0025] The present invention will be described in detail below with reference to the accompanying drawings and taking the preparation and anti-tumor application of benzenesulfonamide compounds as specific examples.

[0026] (1) Preparation of benzenesulfonamide compounds

[0027] Such as figure 1 As shown, the reagents and conditions in the synthetic reaction of benzenesulfonamide HDACs inhibitors are: (a) pyridine, 125°C, 6h, 53%; (b) AIBN, NBS, CCl 4 , reflux, 3h, 61%; (c) NaN 3 , DMF, room temperature, 24h, 86%; (d) Triphenyl phosphine, THF, H 2 O, 60°C (, 12h, 52%; (e) CDI, THF, DBU, Et 3 N, 45%; (f) SNCl 2 2H 2 O, reflux, 12h, 61%.

[0028] Synthesis of compound 3:

[0029] Dissolve 1g (7.24mmol) of o-nitroaniline in 40ml of dry pyridine solution, slowly add 1.38g (7.24mmol) of p-toluenesulfonyl chloride, and react at 125°C for 6h. After the reaction is completed, pour the reaction solution into 300ml of ice water. At this time, a brown solid gradually precipita...

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Abstract

The invention relates to a chemical method for synthesizing a benzsulfamide HDAC (Histone Deacetylase) inhibitor by taking paratoluensulfonyl chloride and ortho-nitroaniline as materials. The method comprises the following steps: (1), synthesis of a toluene sulfonamide compound, wherein the paratoluensulfonyl chloride and ortho-nitroaniline are condensed at a high temperature by taking pyridine as a solvent to obtain the toluene sulfonamide compound; (2), synthesis of a primary amine compound, wherein bromination is carried out on methyl of a benzene ring by NBS (N-Bromosuccinimide) under action of AIBN (2,2-Azobisisobutyronitrile), sodium azide is used to convert the methyl into an azide, and then dehydrated into the primary amine compound under action of triphenylphosphine; (3), synthesis of an amino compound, wherein 3-hydroxymethylpyridine and the primary amine compound are condensed to obtain nitryl compound containing sulfamide under action of CDI (Carbonyldiimidazole), and stannous chloride is used to reduce the nitryl compound to obtain the amino compound. An activity test indicates the compounds have tumor cell proliferation resistance equivalent to that of a positive drug MS-275, and have potential of being developed into anti-tumor drugs.

Description

Technical field: [0001] The invention belongs to the field of drug synthesis, and relates to a chemical synthesis method of a benzenesulfonamide histone deacetylase inhibitor and its application in antitumor. Background technique: [0002] Histone deacetylases (Histone deacetylases, HDACs) are one of the most studied tumor-related molecular targets in recent years, and are closely related to the occurrence, development and metastasis of tumors and the angiogenesis of tumor tissues. Histone deacetylase inhibitors (Histone deacetylase inhibitors, HDACIs) are anti-tumor drugs developed by targeting HDACs, they can cause cell cycle blockade and tumor cell selective apoptosis, in vitro and in vivo All have obvious antitumor effect. So far, two HDACs inhibitors (SAHA and FK228) have been approved by the US Food and Drug Administration (FDA) for the treatment of cutaneous T-cell lymphoma. Therefore, the development of high-efficiency, low-toxicity, and strong selectivity HDACs in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D213/30A61K31/4406A61P35/00
CPCC07D213/30
Inventor 李德海栾业鹏朱天骄顾谦群张振沛
Owner OCEAN UNIV OF CHINA
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