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Nitrogen methyl side chain-substituted triadimenol antifungal compound and preparation method thereof

A compound, the technology of triazole alcohol, applied in the field of medicine, can solve the problems such as the unseen

Inactive Publication Date: 2010-07-21
SECOND MILITARY MEDICAL UNIV OF THE PEOPLES LIBERATION ARMY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But so far there is no 1-(1H-1,2,4-triazol-1-yl)-2-(substituted-difluorophenyl)-3-(N-methyl side chain substituted amino)-2 -A report on propanol compounds and their antifungal activity

Method used

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  • Nitrogen methyl side chain-substituted triadimenol antifungal compound and preparation method thereof
  • Nitrogen methyl side chain-substituted triadimenol antifungal compound and preparation method thereof
  • Nitrogen methyl side chain-substituted triadimenol antifungal compound and preparation method thereof

Examples

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Embodiment 1

[0106] Embodiment 1: the preparation of 2-chloro-2', 4'-difluoroacetophenone (II)

[0107] 100g (0.747mol) of anhydrous aluminum chloride and 75.33g (0.667mol) of m-difluorobenzene (I) were placed in a 500mL three-necked flask, stirred at room temperature, and 75.33g (0.667mol) of chloroacetyl chloride was slowly added dropwise After the dropwise addition, continue to stir at room temperature for 30 minutes, slowly raise the temperature to 50°C, continue to stir at this temperature for 5 hours, pour the reaction solution into ice water, precipitate crystals, and filter to obtain a solid. Extract twice, combine the dichloromethane extracts, wash with water until neutral, dry over anhydrous sodium sulfate, filter, recover the solvent to obtain a solid, combine the solid obtained twice and recrystallize with methanol to obtain 2-chloro-2',4' -Difluoroacetophenone: 107.38g, yield 87.2%, melting point: 46-47°C.

Embodiment 2

[0108] Example 2: Preparation of 2-(1H-1,2,4-triazol-1-yl)-2',4'-difluoroacetophenone (III)

[0109] Triazole 27.2g (0.4mol), TEBA0.4g, anhydrous K 2 CO 3 41.56g (0.3mol) was added to 180mL of CH 2 Cl 2 Suspension was obtained; 2-chloro-2', 4'-difluoroacetophenone (II) 38.2g (0.2mol) was dissolved in 60mL CH 2 Cl 2 Add it dropwise to the above-mentioned 180mL suspension in an ice bath, and the drop is completed in about 1.5 hours. After the drop is completed, react at 0-5°C for 5 hours, and react at room temperature for 24 hours. Then filter, filter cake with CH 2 Cl 2Wash several times, collect the filtrate, wash the filtrate 3 times with water, each 100mL, anhydrous Na 2 SO4 dried, filtered, distilled CH 2 Cl 2 , dissolve the residue in 100 mL of anhydrous ethyl acetate, stir and add concentrated nitric acid dropwise until the yellow solid no longer precipitates, filter, wash the filter cake several times with a small amount of ethyl acetate, dry it, dissolve it in...

Embodiment 3

[0110] Example 3: Preparation of 1-[2-(2,4-difluorophenyl)-2,3-epoxypropyl]-1H-1,2,4-triazole mesylate (IV)

[0111] Take 2-(1H-1,2,4-triazol-1-yl)-2',4'-difluoroacetophenone (III) 29.8g (0.115mol), trimethyl iodine oxysulfide 25.3g ( 0.115mol), 1.6g of trimethylhexadecylammonium bromide, put into a 500mL three-necked flask, add 180mL of toluene and 225mL of 20% sodium hydroxide solution (w / w), heat at 60°C for 3 hours, and the reaction is completed Finally, separate the toluene layer, extract the water layer with toluene (100mL×2), combine the toluene layers, wash with water until neutral, and recover most of the toluene, dilute the residual solution with 120mL ethyl acetate, and add the solution dropwise at 0°C 8.3 g of ethyl acetate of methanesulfonic acid (2 mL), precipitated a pale yellow solid, filtered, and recrystallized from methanol to obtain compound IV: 21.71 g, yield 56.7%, melting point: 128-129°C.

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Abstract

The invention provides a nitrogen methyl side chain-substituted triadimenol antifungal compound and a preparation method thereof, namely a 1-(1H-1, 2, 4-triazole-1-yl)-2-(2, 4-difluoro phenyl)-3-(N-methyl side chain-substituted amino)-2-propyl alcohol compound (comprising a racemate thereof, and an R type or S type isomer), and hydrochloride, nitrate, hydrobromide and methane sulfonate and a preparation method of the compound. The compound has a strong antifungal effect on various shallow and deep fungi; and compared with the traditional antifungal medicament in clinical practice, the compound has the advantages of high efficiency, low toxicity and wide antifungal spectrum and can be used for preparing new antifungal drugs. The structural formula of the compound is shown as follows.

Description

technical field [0001] The invention relates to the field of medical technology, and is a novel triazole alcohol antifungal compound——1-(1H-1,2,4-triazol-1-yl)-2-(substituted phenyl)-3 -(N-methyl side chain substituted amino)-2-propanol compounds and their salts and preparation methods. Background technique [0002] In recent years, with the extensive application of broad-spectrum antibiotics, antineoplastic drugs, and immunosuppressants, the widespread implementation of radiotherapy and organ transplantation, the widespread development of catheters and intubations, and the rapid increase in immunocompromised patients, especially AIDS patients, have resulted in Fungal infections, especially deep fungal infections, have risen sharply, and deep fungal infections have become the main cause of death from major diseases such as AIDS and tumors. However, as far as the antifungal drugs in clinical use are concerned, there are problems such as large side effects, narrow antibacteri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D249/08C07D401/12A61K31/4196A61K31/454A61P31/04
Inventor 张万年盛春泉车晓颖王文雅缪震元姚建忠董国强王胜正
Owner SECOND MILITARY MEDICAL UNIV OF THE PEOPLES LIBERATION ARMY
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