Ursane- and Oleanane-Type Triterpenes from Ternstroemia gymnanthera Callus Tissues

An investigation on the constituents of the callus tissues of Ternstroemia gymnanthera has led to the isolation of five phytosterols, 15 known triterpenoids, and four new triterpenoids (1-4). The new compounds were characterized by spectroscopic study as 3-epi-corosolic acid lactone (2 alpha,3 alpha...

Full description

Saved in:
Bibliographic Details
Published in:Journal of natural products (Washington, D.C.) D.C.), 2003-08, Vol.66 (8), p.1051-1054
Main Authors: IKUTA, Akira, TOMIYASU, Hiroaki, MORITA, Yasumasa, YOSHIMURA, Kouichi
Format: Article
Language:English
Subjects:
Biological and medical sciences
General pharmacology
Japan
Medical sciences
Molecular Structure
Nuclear Magnetic Resonance, Biomolecular
Oleanolic Acid - analogs & derivatives
Oleanolic Acid - chemistry
Oleanolic Acid - isolation & purification
Pharmacognosy. Homeopathy. Health food
Pharmacology. Drug treatments
Phytosterols - chemistry
Phytosterols - isolation & purification
Plant Stems - chemistry
Plants, Medicinal - chemistry
Stereoisomerism
Theaceae - chemistry
Triterpenes - chemistry
Triterpenes - classification
Triterpenes - isolation & purification
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An investigation on the constituents of the callus tissues of Ternstroemia gymnanthera has led to the isolation of five phytosterols, 15 known triterpenoids, and four new triterpenoids (1-4). The new compounds were characterized by spectroscopic study as 3-epi-corosolic acid lactone (2 alpha,3 alpha-dihydroxyurs-11-en-13 beta,28-olide) (1), 3-epi-ternstroemic acid (2 alpha,3 alpha-dihydroxyurs-12-en-11-on-28-oic acid) (2), ternstroemic acid (2 alpha,3 beta-dihydroxyurs-12-en-11-on-28-oic acid) (3), and gymnantheraic acid (2 alpha,3 alpha-dihydroxy-11 alpha-methoxyurs-12-en-28-oic acid) (4). The isolated triterpenes were compared with those from actinidiaceous plant callus tissues from a chemotaxonomic point of view.
ISSN:0163-3864
1520-6025
DOI:10.1021/np030069v