Two novel compounds with antitumor effects in Rubus corchorifolius leaves, preparation method and application thereof

Two new compounds with anti-tumor effects were prepared through the extraction and separation method of raspberry leaves, which solved the problem of lack of effective anti-tumor compounds in the existing technology and enabled the structure determination of the compounds and the development of anti-tumor drugs.

CN102344365AInactive Publication Date: 2012-02-08曹庸
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Patent Information

Application Number
CN201110222986.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2011-08-02
Publication Date
2012-02-08
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

There is a lack of effective anti-tumor compounds extracted and isolated from raspberry leaves in the existing technology, making it difficult to develop methods with anti-tumor drugs.

Method used

Through crude extraction of raspberry leaves, repeated silica gel column chromatography, thin layer chromatography and crystallization methods, two new compounds were prepared: 3β, 16α, 17, 19-tetrahydroxy-enanti-kauri-19-acetate. and 3β,16α,17,19-tetrahydroxy-enanti-kauri-19-acetate-17-oxo-β-D-glucoside, whose structures were determined by spectroscopic analysis and chemical methods, followed by a gradient elution step purification.

Benefits of technology

These two compounds show significant anti-tumor effects and can be used to prepare anti-tumor drugs and health products with a good dose-effect relationship.

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Abstract

The invention relates to two novel compounds separated out by extracting Rubus corchorifolius leaves and a preparation method thereof. The two novel compounds are obtained through adopting methods of repeated silicagel column chromatography, thin layer chromatography and crystallization in the crude extract of the Rubus corchorifolius leaves, wherein the chemical name of the compound I is (ZM-1) 3beta, 16alpha, 17, 19-tetrahydroxy-ent-kaurene-19-acetate, and the chemical name of the compound II is (99-106) 3beta, 16alpha, 17,19-tetrahydroxy-ent-kaurene-19-acetate-17-O-beta-D-glucoside. Proved by an activity experiment, the two novel compounds have very good antitumor effects, and can be applied to preparing antitumor drugs.
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