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Nitrogen mustard derivative n,n-bis(2-chloroethyl)-n'-benzoyl-1,4-phenylenediamine and its preparation method

A benzoyl and chloroethyl technology, applied in the preparation of carboxylic acid amides, amino compounds, organic compounds and other directions, can solve problems such as blocking and killing, reducing the body's defense function, etc., to enhance the therapeutic index, reduce Decreased immunity and reduced side effects

Inactive Publication Date: 2019-03-19
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Nitrogen mustards are commonly used anti-tumor drugs with particularly good anti-tumor activity. However, as traditional cytotoxic drugs, they still have the unique disadvantages of bioalkylating agents. At the same time, it also has an inhibitory effect on other normal cells that proliferate rapidly, for example, it also has the effect of blocking and killing some bone marrow cells, intestinal epithelial cells, and some hair cells, which will cause nausea, vomiting, Hair loss and other serious adverse reactions; in addition, nitrogen mustard drugs also have immunosuppressive effects, which will reduce the body's defense function, allowing bacteria and viruses to enter and cause various infections

Method used

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  • Nitrogen mustard derivative n,n-bis(2-chloroethyl)-n'-benzoyl-1,4-phenylenediamine and its preparation method
  • Nitrogen mustard derivative n,n-bis(2-chloroethyl)-n'-benzoyl-1,4-phenylenediamine and its preparation method
  • Nitrogen mustard derivative n,n-bis(2-chloroethyl)-n'-benzoyl-1,4-phenylenediamine and its preparation method

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preparation example Construction

[0039] The preparation method of above-mentioned nitrogen mustard derivative N,N-bis(2-chloroethyl)-N'-benzoyl-1,4-phenylenediamine comprises the following steps:

[0040] Step 1, preparing N,N-bis(2-chloroethyl)-1,4-phenylenediamine;

[0041] Substep 1a, first prepare N,N-di(2-hydroxyethyl)-4-nitroaniline according to the following steps: 4-chloronitrobenzene, diethanolamine, potassium carbonate and 1% CuSO 4Add the solution into the reactor one by one, stir evenly, when the temperature rises to 82°C, add toluene into the reactor, continue to heat up to 115-120°C, keep stirring at a constant temperature for 6-9 hours, after the reaction is complete, remove the toluene by distillation, distill The final mother liquor was poured into hot water at 40°C-60°C, stirred, and after standing overnight, the water layer was suction filtered to obtain the crude product, which was recrystallized with absolute ethanol to obtain yellow needle-shaped crystals N,N-di( 2-Hydroxyethyl)-4-nitro...

Embodiment 1

[0046] 1.1 Synthesis of N,N-bis(2-hydroxyethyl)-4-nitroaniline

[0047]

[0048] Add 12.64g (0.080mol) of 4-chloronitrobenzene, 10.99g (0.104mol) of diethanolamine and 7.18g (0.052mol) of potassium carbonate in a 250mL three-necked flask, and finally add 1.2mL of CuSO with a mass percentage concentration of 1%. 4 well mixed. Heat to raise the temperature. When the temperature reaches 82°C, add 5.0mL of toluene to the reaction liquid, continue to raise the temperature to control the reaction temperature to 117°C, use thin-layer chromatography to track the reaction progress, and stir at constant temperature for 6h. After the reaction is complete, toluene is removed by distillation, and the mother liquor after distillation is poured into hot water at 60°C, stirred vigorously, left to stand overnight, and then filtered to remove the water layer to obtain the crude product, which is recrystallized with absolute ethanol to obtain yellow needle-shaped crystals N,N-bis(2-hydroxyet...

Embodiment 2

[0059] 1.1 Synthesis of N,N-bis(2-hydroxyethyl)-4-nitroaniline

[0060]

[0061] Add 4-chloronitrobenzene, diethanolamine and potassium carbonate at a molar ratio of 1:1.2:0.6 to a 250mL three-necked flask, and finally add CuSO with a mass concentration of 1%. 4 solution, and the mass concentration is 1% CuSO 4 The dosage ratio of the solution to 4-chloronitrobenzene is 0.5mL:3g, mix well; heat up the temperature, when the temperature reaches 82°C, add toluene to the reaction solution, and the dosage of toluene and 4-chloronitrobenzene The ratio was 1mL:2g; continue to increase the temperature to control the reaction temperature to 120°C, use thin-layer chromatography to track the reaction progress, and stir the reaction at constant temperature for 9h. After the reaction is complete, toluene is removed by distillation, and the mother liquor after distillation is poured into hot water at 60°C, stirred vigorously, left to stand overnight, and the water layer is removed by su...

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Abstract

The invention specifically discloses the structural formula of an arylamine nitrogen mustard derivative N,N-bis(2-chloroethyl)-N'-benzoyl-1,4-phenylenediamine; and a preparation method thereof: firstly, N, N-bis(2-chloroethyl)-1,4-phenylenediamine; N,N-bis(2-chloroethyl)-1,4-phenylenediamine, dichloromethane and triethylamine were then charged into the reactor, cooled in an ice-water bath, stirred, and added dropwise the mixed solution of benzoyl chloride and dichloromethane to the reactor, after the dropwise addition was completed, removed the ice-water bath, and reacted at room temperature for 8-14 hours, after the reaction was complete , the reaction solution is washed, dried, and distilled at atmospheric pressure successively, and the filter cake after distillation is purified, that is, it is obtained. Under the premise of enhancing the therapeutic index of nitrogen mustard, the arylamine nitrogen mustard derivative of the present invention can effectively reduce the toxic and side effects of nitrogen mustard, and has the curative effect of bactericidal and anti-inflammatory at the same time, so as to reduce the reduction of immunity caused by patients after chemotherapy. risk of complications.

Description

technical field [0001] The invention relates to the technical field of nitrogen mustard antitumor drugs, in particular to a nitrogen mustard derivative N,N-bis(2-chloroethyl)-N'-benzoyl-1,4-phenylenediamine and its Preparation. Background technique [0002] Nitrogen mustards are commonly used anti-tumor drugs with particularly good anti-tumor activity. However, as traditional cytotoxic drugs, they still have the unique disadvantages of bioalkylating agents. At the same time, it also has an inhibitory effect on other fast-proliferating normal cells, such as some bone marrow cells, intestinal epithelial cells, and some hair cells, which can cause nausea, vomiting, Hair loss and other serious adverse reactions; in addition, nitrogen mustard drugs also have an immunosuppressive effect, which will reduce the body's defense function, allowing bacteria and viruses to enter and cause various infections. [0003] Nitrogen mustard anti-tumor drugs are composed of two parts in terms ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C231/02C07C233/80A61P35/00A61P31/00A61P29/00
CPCC07C209/325C07C209/74C07C213/00C07C231/02C07C233/80C07C211/51C07C211/52C07C215/16
Inventor 李春荣李发明邓红章郭靖茹王广华姬雨
Owner CHANGAN UNIV
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