PUBLICATION

Bioactive C21 Steroidal Glycosides from the Roots of Cynanchum otophyllum That Suppress the Seizure-like Locomotor Activity of Zebrafish Caused by Pentylenetetrazole

Authors
Li, J.L., Zhou, J., Chen, Z.H., Guo, S.Y., Li, C.Q., Zhao, W.M.
ID
ZDB-PUB-150703-9
Date
2015
Source
Journal of natural products   78(7): 1548-55 (Journal)
Registered Authors
Keywords
none
MeSH Terms
  • Animals
  • Cynanchum/chemistry*
  • Disease Models, Animal
  • Drugs, Chinese Herbal/chemistry
  • Drugs, Chinese Herbal/isolation & purification*
  • Drugs, Chinese Herbal/pharmacology*
  • Glycosides/chemistry*
  • Glycosides/isolation & purification*
  • Glycosides/pharmacology*
  • Molecular Structure
  • Motor Activity/drug effects*
  • Nuclear Magnetic Resonance, Biomolecular
  • Pentylenetetrazole/pharmacology*
  • Plant Roots/chemistry
  • Pregnenes/chemistry
  • Pregnenes/isolation & purification*
  • Pregnenes/pharmacology*
  • Seizures/drug therapy*
  • Structure-Activity Relationship
  • Zebrafish
PubMed
26135914 Full text @ J. Nat. Prod.
Abstract
Six new C21 steroidal glycosides, cynotophyllosides A-F (1-6), together with 16 known compounds, were isolated from the roots of Cynanchum otophyllum. The structures of the new compounds were elucidated by spectroscopic analysis and chemical methods. The three major components, otophylloside F (15), otophylloside B (17), and rostratamine 3-O-β-d-oleandropyranosyl-(1→4)-β-d-cymaropyranosyl-(1→4)-β-d-cymaropyranoside (18), suppressed the seizure-like locomotor activity caused by pentylenetetrazole in zebrafish. Preliminary structure-activity relation studies revealed that a pregnene skeleton with a C-12 ester group (ikemaoyl > cinnamoyl > hydroxy > p-hydroxybenzoyl) and a C-3 sugar chain consisting of three 2,6-dideoxysaccharide units is essential for this suppressive activity.
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