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A kind of emodin azole alcohol compound and its application

A technology of emodinazole and compound, applied in organic chemistry, medical preparations containing active ingredients, antibacterial drugs, etc., can solve the problems of unsatisfactory antimicrobial effect, achieve strong in vitro antimicrobial activity, synthetic route Short, Inexpensive Effects

Active Publication Date: 2021-12-03
LINYI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies have shown that emodin has inhibitory effects on Staphylococcus aureus, Streptococcus, Bacillus diphtheria, Bacillus subtilis, Bacillus paratyphoid, Shigella, Escherichia coli, influenza bacillus, pneumococcus, catarrhal bacteria, etc., but the antimicrobial effect is not It is too ideal. Therefore, researchers started from the parent structure of emodin for chemical modification, designed and synthesized a series of emodin derivatives with better activity, in order to develop into new antimicrobial drugs

Method used

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  • A kind of emodin azole alcohol compound and its application
  • A kind of emodin azole alcohol compound and its application
  • A kind of emodin azole alcohol compound and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Prepare emodinazole compound I-1, the reaction formula is as follows:

[0033]

[0034] Specific steps are as follows:

[0035] Add 0.101g of 1,8-dihydroxy-3-methyl-6-(oxirane-2-ylmethoxy)anthracene-9,10-dione (shown in formula II) in the 50mL round bottom flask ), 0.053g of potassium carbonate, 0.022g of 1,2,4-triazole, and 30mL of absolute ethanol were refluxed for reaction, tracked by thin-layer chromatography until the end of the reaction, cooled to room temperature (18~25°C), and ethanol was removed by distillation under reduced pressure , the residue was purified by silica gel column chromatography using a mixture of dichloromethane and methanol at a volume ratio of 10:1 as the eluent, and dried to obtain 0.151 g of emodinazole compound I-1 as a yellow solid.

[0036] The yield of this embodiment is 64%; melting point 124-126 ℃; 1 H NMR (400MHz, DMSO-d 6 )δppm: 2.35(s,3H,CH 3 ),4.07-4.03(m,H,OCH 2 CHCH 2 ), 4.14-4.11 (m, H, OCH 2 CHCH 2 ), 4.14-4.11 (m,...

Embodiment 2

[0039] Emodin azole compound I-2, the reaction formula is as follows:

[0040]

[0041] Specific steps are as follows:

[0042] In the 50mL round bottom flask, add 0.149g of 1,8-dihydroxy-3-methyl-6-(oxirane-2-ylmethoxy)anthracene-9,10-dione (shown in formula II ), potassium carbonate 0.089g, 4-nitroimidazole 0.054g and absolute ethanol 30mL, reflux to react, thin-layer chromatography traces to the end of the reaction, cools to room temperature (18~25 ℃), removes ethanol by vacuum distillation, and the residue Purify by silica gel column chromatography using a mixture of dichloromethane and methanol at a volume ratio of 10:1 as the eluent, and dry to obtain 0.098 g of emodinazole compound I-2 as a yellow solid.

[0043] The yield of this example is 51%; melting point is 167-169°C; 1 H NMR (400MHz, DMSO-d 6 )δppm: 2.37(s,3H,CH 3 ),4.18-4.08(m,4H,OCH 2 CHCH 2 ),4.37-4.30(m,H,OCH 2 CHCH 2 ), 5.70 (s, H, OH), 6.83 (s, H, emodin-2-H), 7.10 (br, 2H, emodin-4, 5-H), 7.41 (...

Embodiment 3

[0045] Emodin azole compound I-3, the reaction formula is as follows:

[0046]

[0047] Specific steps are as follows:

[0048]In the 50mL round bottom flask, add 0.152g of 1,8-dihydroxy-3-methyl-6-(oxirane-2-ylmethoxy)anthracene-9,10-dione (shown in formula II ), potassium carbonate 0.091g, 2-methyl-5-nitroimidazole 0.061g and absolute ethanol 30mL, reflux for reaction, TLC tracking to the end of the reaction, cool to room temperature (18~25°C), and distill under reduced pressure Remove ethanol, the residue is purified by silica gel column chromatography with a mixture of dichloromethane and methanol at a volume ratio of 10:1 as an eluent, and dried to obtain 0.087g of yellow solid-like emodinazole compound I-3 .

[0049] The yield of this example is 42%; the melting point is 145-147°C; 1 H NMR (400MHz, DMSO-d 6 )δppm: 22.37(s,3H,CH 3 ),2.39(s,3H,imidazole-CH 3 ),4.21-4.10(m,5H,OCH 2 CHCH 2 ),5.66(br,H,OH),8.27(s,H,imidazole-4-H),8.38(s,H,imidazole-3-H),11.91(s,H,e...

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Abstract

The invention belongs to the technical field of medicinal chemistry, and discloses an emodin azole alcohol compound as shown in formula I, which has strong antimicrobial activity in vitro, especially against Staphylococcus aureus, Bacillus subtilis and Micrococcus luteus , Escherichia coli, Proteus, Pseudomonas aeruginosa, Shigella dysenteriae, Salmonella typhimurium and other bacteria, as well as Candida utilis, Candida albicans, Saccharomyces cerevisiae, Aspergillus flavus, Candida, etc. Fungi show high inhibitory activity and can be used to prepare antibacterial and / or antifungal drugs, thereby providing more efficient drug candidates for clinical antimicrobial treatment, and helping to solve the increasingly serious drug resistance, stubborn Clinical treatment issues such as pathogenic microorganisms and emerging harmful microorganisms.

Description

technical field [0001] The invention belongs to the technical field of medicinal chemistry, and in particular relates to an emodin azole alcohol compound and an application thereof. Background technique [0002] Emodin, whose chemical name is 1,3,8-trihydroxy-6-methylanthraquinone, has a variety of biological activities such as immune suppression, anti-tumor, anti-microbial, antispasmodic, cough-relieving, catharsis, diuretic, etc., so in It has high clinical medical value. Studies have shown that emodin has inhibitory effects on Staphylococcus aureus, Streptococcus, Bacillus diphtheria, Bacillus subtilis, Bacillus paratyphoid, Shigella, Escherichia coli, influenza bacillus, pneumococcus, catarrhal bacteria, etc., but the antimicrobial effect is not It is too ideal. Therefore, scientific researchers started from the parent structure of emodin for chemical modification, designed and synthesized a series of emodin derivatives with better activity, in order to develop them int...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D249/08C07D233/92A61K31/4196A61K31/4164A61P31/04A61P31/10
CPCA61P31/04A61P31/10C07D233/92C07D249/08Y02A50/30
Inventor 张慧珍钟文文宁志伟梁文靖侯杰
Owner LINYI UNIVERSITY
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