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Isopentenyl xanthone compounds and their use in the preparation of antitumor medicines

A technology of isopentenyl ketone and tumor drug, which is applied in the field of traditional Chinese medicine and can solve the problems of unknown anti-tumor active ingredients of Zheshu

Inactive Publication Date: 2006-11-29
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, the antitumor active ingredients of Zheshu are still unknown.

Method used

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  • Isopentenyl xanthone compounds and their use in the preparation of antitumor medicines
  • Isopentenyl xanthone compounds and their use in the preparation of antitumor medicines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Example 1 Extracting and Separating New Prenyl Oxonone Compounds from Zheshu

[0037]Dry and crush 13.6kg of the root of C.tricuspidata (Carr.) Bur., extract with 95% ethanol, concentrate the extract under reduced pressure to obtain extract, suspend the extract with water, and extract with petroleum ether and chloroform in turn , to obtain petroleum ether part, chloroform part and water-soluble part. The chloroform part was subjected to silica gel column chromatography, followed by gradient elution with petroleum ether-acetone (20:1-5:5), and the fractions were collected. From petroleum ether-acetone 10:1 fraction, obtain turpentone B (2) 400mg; Petroleum ether-acetone 9:1 fraction is subjected to repeated column chromatography to obtain turpentone F (6) 710mg and Talentone H(8) 167mg; Petroleum ether-acetone 8:2 fractions were subjected to repeated column chromatography to obtain tylentinone C(3) 33mg, tungentone D(4) 220mg and tungentone G(7) 48 mg; The fraction of ...

Embodiment 2

[0054] Embodiment 2 Compounds of the present invention inhibit human tumor cell proliferation test in vitro

[0055] 1. Screening of SGC-7901, BGC-823, SMMC-7721, HCT cell proliferation

[0056] Using the modified MTT method, the tumor cells in logarithmic growth phase were added to a 96-well culture plate, 90 μL per well. Subsequently, 10 μL of test samples (0.31-20 μg / mL) in four concentrations were added to each well. Three replicate wells were set up for the sample addition group. cells at 37°C, 5% CO 2 After incubating in the incubator for 72 hours, add MTT solution 5 mg / mL, 10 μL. After continuing to cultivate for 4 hours, add triple solution [10% SDS-5% isobutanol-0.012mol / L HCl], 90 μL / well, and after 12 hours, measure the OD value of each well at a wavelength of 550 nm with a microplate reader.

[0057] Cell inhibition rate=(OD value of control group-OD value of medication group) / OD value of control group×100%. Calculate the IC of each sample with GWBASIC softwar...

Embodiment 3

[0061] Effects of Compounds of the Present Invention on Angiogenesis of Chicken Embryo Chorioallantoic Membrane (CAM)

[0062] experimental method:

[0063] (1) Put the eggs into the incubator at 37°C after being sterilized, with the air chamber upwards, and rotate 3-4 times a day. On the ninth day of hatching, after disinfecting the surface of the eggs, make a small hole of 1-2mm on the top of the air chamber, at a distance from the fetal head. Mark a rectangular area of ​​1.0cm×1.5cm on the projected part of the eggshell in the first 1cm and between the two yolk veins, grind and cut through the eggshell, and gently scratch a small hole with a diameter of about 1mm on the eggshell membrane, and add a little Separation of the eggshell membrane on the edge of the small hole with sterile pure water, put a sterile microporous filter membrane carrier with a diameter of 6mm on the least blood vessel of the CAM, and then add large, medium and small doses of the compound to be tested...

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Abstract

The present invention belongs to the field of Chinese medicine technology, and is especially isopentenyl ketone compound from cudrania and its application in preparing antitumor medicine. The isopentenyl ketone compound of the present invention has relatively high antitumor activity and function of inhibiting vascularization and may be used in preparing antitumor medicine.

Description

technical field [0001] The invention belongs to the field of traditional Chinese medicine, and relates to natural antitumor drugs, in particular to new prenyl oxanone compounds in Zheshu and their application in the preparation of antitumor drugs. Background technique [0002] Tumor is one of the malignant diseases that seriously threaten human health. Over the years, the governments of various countries have invested a lot of manpower and material resources to try to overcome each stubborn cancer, and have indeed discovered many effective anticancer drugs that have great use value or have been used in clinical practice. Tumor drugs, but their quantity and effective clinical effects are still far from people's expectations. The early anti-tumor drugs mainly started from the cytotoxic activity, and screened by synthesizing a large number of organic or inorganic analogues, that is, the so-called chemotherapeutic drugs. Search. Most of the compounds with anti-tumor activity f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D493/14C07D493/16A61K31/352A61P35/00C07D307/00C07D311/00
Inventor 侯爱君朱国福邹迎曙
Owner FUDAN UNIV
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