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A kind of new compound and its preparation method and application

A compound and monomer technology, applied in the field of new compounds and their preparation, to achieve the effects of solving complex chemical compositions, high efficiency, and simple extraction and separation methods

Inactive Publication Date: 2018-05-18
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there have been related researches on the medicinal effects of the root bark of Moutan grandiflora, but due to the variety of chemical components in the root bark of Moutan grandiflora, there have been no relevant reports on the research on its active ingredients. Phase silica gel column chromatography, reversed phase (MCI-Gel) column chromatography, gel (Sephadex LH-20) column chromatography, high performance liquid chromatography and other techniques were used to separate and purify the ethyl acetate extract components from the root bark of Peony grandiflora , 23 monomeric compounds were obtained, and their structures were confirmed by ultraviolet spectrum, infrared spectrum, mass spectrum, nuclear magnetic resonance spectrum and literature reports, including 7 monoterpene compounds, 3 monoterpene glycoside compounds, and 8 phenolic compounds , 3 phenolic glycoside compounds, 1 alkaloid compound, 1 triterpenoid compound, including 4 new compounds and 19 known compounds, all of which were isolated for the first time from the Tibetan peony

Method used

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  • A kind of new compound and its preparation method and application
  • A kind of new compound and its preparation method and application
  • A kind of new compound and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Take the dry root bark of Tibetan peony, crush it and accurately weigh 10kg, add 95% ethanol according to the ratio of root bark to solvent 1:10 (W / V), extract at room temperature for 24 hours, filter with suction, repeat three times, 50 °C and concentrated under reduced pressure, then the total extract was extracted with ethyl acetate, and the extract was concentrated under reduced pressure at 50 °C to obtain 356 g of component dry powder A.

[0024] Weigh 356g of dry powder A and mix it with 1.5kg of polyamide, carry out medium-pressure liquid chromatography, the reverse phase column packing material is MCI-Gel, use 20% volume concentration of methanol aqueous solution to elute to obtain 51g of component B, use silica gel Mix the sample, and carry out silica gel column chromatography, after eluting with petroleum ether / ethyl acetate mixture with a volume ratio of 10:1, repeat silica gel column chromatography, utilize a volume ratio of 6:1 petroleum ether / acetone mixtur...

Embodiment 2

[0025] Embodiment 2 monomer compound structure identification

[0026] 1) Spectrum test

[0027] The isolated compound was tested for purity by analytical liquid chromatography, and if there was no ultraviolet absorption, it could not be detected by analytical liquid chromatography, and was tested by TLC. According to the polarity of the monomer compound, a corresponding deuterated solvent was selected for dissolution, and NMR was used for detection, and tetramethylsilane (TMS) was used as an internal standard. New compounds need to be pressed into KBr tablets for IR identification of the types of functional groups contained in the compound structure; at the same time, an appropriate amount of compound is taken and dissolved in a corresponding polar solvent for UV detection to determine the types of functional groups with UV absorption in the compound structure. The molecular weight of the compound is estimated according to ESI-MS, and the molecular weight, molecular formula ...

Embodiment 3

[0037] Example 3 Determination of antifungal activity

[0038] Microsporum gypsumoidis is a kind of filamentous fungus that can cause superficial skin ringworm, which can cause tinea corporis, jock itch, onychomycosis, tinea capitis, etc. It is a common superficial pathogenic fungus in clinical practice. In recent years, the role of medicinal plants in the treatment of skin diseases has attracted much attention. It is an important research direction to seek and use the active ingredients in natural medicinal plants to design new non-toxic drugs for the treatment of skin diseases. Minimum inhibitory concentration (Minimum inhibitory concentration, MIC) is an important index to measure the activity of antibacterial drugs. The test tube drug base method can not only conveniently interpret the MIC value, but also is simple, economical and easy to operate.

[0039] In this experiment, the activity of the isolated monomeric compounds was studied with reference to the "Spore-forming ...

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PUM

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Abstract

The invention discloses a new compound. The compound is in a colorless oil shape. The molecular formula is C10H12O4, the unsaturation degree is 5, and the structural formula of the compound can be seen in the specification. The ultraviolet spectrum shows that the maximum ultraviolet absorption of the compound is 203 nm. The invention further relates to an extraction and separation method of the compound. Extraction is conducted through ethyl acetate, extraction liquid is separated and purified, and then the monoterpene compound is obtained. Due to the activity effect of the compound on resisting fungi, the lead compound is provided for development of medicine for resisting fungi, and important significance in development of new application of natural products and plant medicine is achieved.

Description

technical field [0001] The invention belongs to the technical field of organic compounds, and in particular relates to a new compound and its preparation method and application. Background technique [0002] Tibetan big flower yellow peony (Paeonia ludlowii) is Ranunculaceae (Ranunculacea), Paeonia (Paeonia), peony group (Sect.Moutan DC.) plant. It only grows in the open valleys of the Yarlung Zangbo River and forest edge bushes on hillsides at an altitude of 2500-3500m in Milin, Nyingchi, Bomi, Zayu, Longzi and other counties in Tibet, my country. The number is very small and is decreasing year by year. It is unique to Tibet. endangered protected plants. According to the local chronicles, Tibetans have used the root bark of Tibetan big flower yellow peony to treat gynecological diseases, cardiovascular and cerebrovascular diseases, and dermatophytosis as early as hundreds of years ago. [0003] At present, there have been related researches on the medicinal effects of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C49/84C07C45/78C07C45/79A61P31/10
CPCC07C45/78C07C45/79C07C49/84
Inventor 张彦龙赵丹丹黄悦曲宏悦江伟李建平曾伟民
Owner HEILONGJIANG UNIV
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