Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Videos

Quassinoids from Picrasma crenata.

Claudio R Novello¹, Antonio G Ferreira, Luis C Marques

¹Universidade Estadual de Maringá, Departamento de Farmácia e Farmacologia, Av. Colombo n 5790, POB 331, Zip Code 87020-900, Maringá, PR, Brazil.

Natural Product Research

|May 10, 2003

Summary

This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Integrated chemical and genomic analysis of lipopeptides produced by Bacillus velezensis CMRP4489 with antifungal activity.

Scientific reports·2026

Same author

Development of a NMR-based analytical method for polar metabolomics studies in industrial and food crops.

Plant physiology and biochemistry : PPB·2025

Same author

NMR Analysis and Assignment of a Biosynthesis Gene Cluster for Trichokonins VI and VIII, Antiplasmodial Large Peptaibols Produced by a <i>Trichoderma</i> sp. Fungus.

ACS omega·2025

Same author

Preface: Magnetic resonance in food science - beyond composition and structure.

Food research international (Ottawa, Ont.)·2025

Same author

Ricinus communis responses to exposure to potentially toxic metals: a NMR-based metabolomics approach.

Plant physiology and biochemistry : PPB·2025

Same author

Physiological, biochemical and metabolomics dynamics of Glycine max seedlings after exposure to cadmium and lead: an investigation by <sup>1</sup>H NMR spectroscopy.

Plant physiology and biochemistry : PPB·2025

Researchers identified a new stereoisomer, dihydronorneoquassin, from Picrasma crenata. This discovery adds to the known compounds isolated from this plant species.

Area of Science:

Natural Product Chemistry
Phytochemistry
Organic Chemistry

Background:

Picrasma crenata is a plant species known to produce bioactive compounds.
Quassinoids are a class of compounds found in plants, often exhibiting diverse biological activities.

Purpose of the Study:

To isolate and characterize chemical constituents from Picrasma crenata.
To identify novel compounds and stereoisomers from the plant's wood.

Main Methods:

Extraction of compounds from the wood of Picrasma crenata.
Structure elucidation using spectroscopic data (e.g., NMR, MS).
Chemical evidence to confirm structural assignments.

Main Results:

Isolation of a new stereoisomer, dihydronorneoquassin.

Related Experiment Videos

Co-isolation of known compounds: dihydronorneoquassin, parain, alpha-neoquassin, beta-neoquassin, and quassin.

Confirmation of the structures of all isolated compounds.

Conclusions:

The chemical investigation of Picrasma crenata yielded a new stereoisomer.
The findings expand the known chemical profile of Picrasma crenata and contribute to quassinoid research.