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Indaconitone sand fried product, preparation method and application thereof

A technology for processing indoculine and cuconitine, which is applied in the field of medicinal chemistry, can solve the problems of different toxicity and efficacy, lack of quantitative quality control indicators, and reduced toxicity, and achieve excellent treatment of arrhythmias, good application prospects, and reduced toxicity. toxic effect

Active Publication Date: 2019-12-31
CHENGDU UNIV OF TRADITIONAL CHINESE MEDICINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the processing principle of the sand frying method has not been fully elucidated, how the structure of the toxic alkaloid is transformed during the sand frying process, and whether the toxicity of the transformed product is reduced compared with the prototype alkaloid is not yet clear
And because the processing principle of the sand-frying method has not been clarified, the quality of the sand-stir-fried products is still judged by subjective experience such as "the outer skin is browned and the cross-section is yellow", and there is a lack of quantitative quality control indicators.
[0005] In addition, studies have shown that although some diterpene alkaloids have similar structures, their toxicity and efficacy are different. For example, some can cause arrhythmia and have cardiotoxicity, while others have the effect of treating arrhythmia.

Method used

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  • Indaconitone sand fried product, preparation method and application thereof
  • Indaconitone sand fried product, preparation method and application thereof
  • Indaconitone sand fried product, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Example 1. Screening of process parameters for the processing of indomethacin

[0057] 1. Chromatographic conditions

[0058] Chromatographic column: COSMOSIL PAK 5C18-MS-II (4.6mm×250mm, 5μm); mobile phase: acetonitrile-0.03mol / L ammonium bicarbonate solution (concentrated ammonia adjusted to pH 9.5) (43:57) isocratic elution; column Temperature: 35°C; Flow rate: 1.0 mL / min; Detection wavelength: 230 nm.

[0059] 2. Preparation of reference solution

[0060] Take 46 mg of the reference substance of Indomethacin, accurately weigh it, place it in a 100 mL measuring flask, and add dichloromethane to make a reaction stock solution with a concentration of 0.4626 mg / mL. Take 4mL of the reaction stock solution, place it in a 10mL volumetric flask, evaporate the solvent, add 0.1% hydrochloric acid-methanol to make a constant volume to make a 0.185mg / mL reference solution, shake well, and pass through a microporous membrane (0.45μm), Take the continuous filtrate to obtain the referen...

Embodiment 2

[0077] Example 2. Separation and structural identification of the processed and transformed components of incoconutine

[0078] 1. Column chromatography separation sample preparation

[0079] Take 520mg of indomethamine, put it in a 250ml round-bottom flask, add 100ml of dichloromethane to dissolve it, and use a rotary film evaporator to evaporate the solvent at 40℃ to make the indomethine evenly adhere to the inner wall of the round bottom flask, In an oil bath at ℃ for 30 minutes, take it out and let it cool to obtain the processed product (450mg) of indomethacin, which is used for the column.

[0080] 2. Separation and purification

[0081] Carry out silica gel column chromatography (200-300 mesh, 120g) on ​​the processed product of invoxine, and elution gradient of petroleum ether-acetone-triethylamine (8:1:0.01, 6:1:0.01, 3:1:0.01) , Each gradient is 1.5L, the thin-layer plate is inspected, and the fractions containing compound 1 are combined to obtain component B. Component B ...

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Abstract

The invention provides a compound shown as formula I in the specification or salt thereof. Specifically, R1 is selected from hydrogen, C1-C8 alkyl, C1-C8 alkoxy, halogen and -OC(O)R2; and R2 is selected from C1-C8 alkyl. According to the invention, the compound mithracitine separated from an indaconitone processed product not only does not cause arrhythmia, but also has excellent treatment effecton arrhythmia, can be used for preparation of drugs treating arrhythmia, and also can greatly reduce the toxicity of aconitum drugs containing indaconitone, thus having good application prospects.

Description

Technical field [0001] The present invention belongs to the field of medicinal chemistry, and specifically relates to a stir-fried product of indomethacin and its preparation method and application. Background technique [0002] Ranunculaceae (Ranunculaceae) Aconitum L. plant is a kind of important medicinal plants, mainly for the treatment of bruises, rheumatism, low back pain and other diseases. There are more than 300 species in the world, distributed in the temperate regions of the northern hemisphere; there are more than 200 species in my country, mainly distributed in the high mountains of western Sichuan, northern Yunnan and eastern Tibet, as well as in the northeast, northwest and Inner Mongolia, 40 of which are available for medicinal use , Such as Chuanwu A.carmichaelii / Radix, Northern Aconitum A.kusnezoffiiReichb., Huanghua Aconitum A.coreanum (H.Lév.) Rapaics, Brachypodum Diels, A. pendulum Busch, Kangding Aconitum tatsienense Finet&Gagnep. etc. But Aconitum plants co...

Claims

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Application Information

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IPC IPC(8): C07D471/08A61K31/439A61P9/06
CPCC07D471/08A61P9/06
Inventor 王毓杰王艳陶培邓维佳
Owner CHENGDU UNIV OF TRADITIONAL CHINESE MEDICINE
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