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Phenolic compounds from Bletilla striata.

Li-Ning Wang¹, Yong-Zhi He¹, Qi-Duo Zhao¹

¹a Tianjin State Key Laboratory of Modern Chinese Medicine, College of Herbal Medicine , Tianjin University of Traditional Chinese Medicine , Tianjin 300193 , China.

Journal of Asian Natural Products Research

|March 10, 2017

Summary

This summary is machine-generated.

Researchers isolated two novel malic acid derivatives and ten known compounds from Bletilla striata tubers. These compounds, identified using advanced spectroscopic methods, contribute to understanding traditional Chinese medicine

Keywords:

Bletilla striata Orchidaceae malic acid derivatives spectroscopic analyses

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Area of Science:

Phytochemistry
Natural Product Chemistry
Traditional Chinese Medicine

Background:

Bletilla striata, a traditional Chinese medicinal herb, has a history of use in treating respiratory and gastrointestinal hemorrhages.
The chemical constituents of Bletilla striata are not fully characterized, necessitating further investigation.
Malic acid derivatives are bioactive compounds with potential therapeutic applications.

Purpose of the Study:

To isolate and identify chemical compounds from the dry tubers of Bletilla striata.
To characterize novel compounds and elucidate their structures using spectroscopic techniques.
To contribute to the phytochemical knowledge of Bletilla striata and its medicinal properties.

Main Methods:

Dry tubers of Bletilla striata were subjected to extraction and isolation procedures.
Spectroscopic analyses, including 1D-NMR, 2D-NMR, and High-Resolution Electrospray Ionization Mass Spectrometry (HR-ESI-MS), were employed for structure elucidation.
Comparison with known compounds was performed based on spectroscopic data.

Main Results:

Two new malic acid derivatives, eucomic acid 1-methyl ester and 6'''-acetylmilitaline, were isolated.
Ten known compounds (1, 3-6, 8-12) were also identified from the plant extract.
The structures of the isolated compounds were successfully elucidated through comprehensive spectroscopic analysis.

Conclusions:

The study successfully identified novel and known compounds from Bletilla striata.
The findings expand the understanding of the phytochemical profile of this traditional medicinal herb.
Further research may explore the pharmacological activities of these isolated compounds.