Aesculin-manganese complex as well as preparation method and application thereof

By developing the quinpietin-manganese complex and using its antibacterial mechanism with bacteria, the bacterial resistance problem caused by existing antibiotics is solved, and the efficient antibacterial effect on bacteria such as Staphylococcus aureus is achieved, and bacterial resistance is not easily induced.

CN119707901AActive Publication Date: 2025-03-28JIANGXI SCI & TECH NORMAL UNIV
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Patent Information

Application Number
CN202411794150.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2025-03-28
Estimated Expiration
2044-12-06

AI Technical Summary

Technical Problem

The excessive use of existing antibiotics has led to a significant increase in bacterial resistance, the development speed of new antibacterial drugs is lagging, and there is a lack of antibacterial drugs with novel structures, strong antibacterial activity and difficult to induce bacterial resistance.

Method used

A quinpi-manganese complex was developed, and by combining quinpi-methylene glycol with Mn2+ to form Mn-O bonds, the complex was synthesized by hydrothermal method, and structural characterization and antibacterial activity were studied.

Benefits of technology

The Chinpi-ethiin-manganese complex significantly improved the antibacterial activity against a variety of bacteria, especially the antibacterial activity of Staphylococcus aureus by 4 times. After continuous culture for 20 generations, its minimum inhibitory concentration did not change, suggesting that this complex is not easy to induce bacterial resistance.

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Abstract

The invention discloses an aesculetin-manganese complex as well as a preparation method and application thereof, and relates to the technical field of medicines. The structure of the aesculetin-manganese complex is as follows: Mn < 2 + > and O in aesculetin are coordinated to form a Mn-O bond, Mn is + 2 valence, and a Mn-O4 coordination form exists; the preparation method of the aesculetin-manganese complex comprises the following steps: mixing aesculetin with MnCl2, adding water, heating to react for 1-3 hours, and drying under reduced pressure to obtain a reaction product, namely the aesculetin-manganese complex. The invention also provides an application of the aesculetin-manganese complex in preparation of an antibacterial product. The aesculetin-manganese complex has the beneficial effects that the antibacterial activity of the aesculetin-manganese complex is superior to that of aesculetin, and the aesculetin-manganese complex is not easy to induce bacteria to generate drug resistance.
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