Related Experiment Video
Updated: Aug 15, 2026

2D-HPLC-MS Technology Combined with Molecular Network for the Identification of Components in Tibetan Medicine Aconitum pendulum
Published on: December 8, 2023
A new biflavonoid from Aristolochia contorta
Li-Li Yu1, Rong Huang, Yu-Ping Lv
1Department of Chemistry, Yunnan Normal University, PR China.
Abstract:
From the fruits of Aristolochia contorta Bge, beside the known aristolochic acids IVa and VII, aristolactam-N-beta-D-glucopyanoside, aristoloctam Ia N-beta-D-glucopyanoside, pinitol and daucosterol, a new biflavonoid was isolated. Its structure was determined as (+/-)-2"R,3"R-dihydro-3"-hydroxyamentoflavone (1) by means of spectral methods including 1D-, 2D-NMR and HR-ESIMS and the known compounds were identified on the basis of comparing their NMR data with those of the corresponding compounds in the literature.
Related Concept Videos
Adrenergic Antagonists: ɑ and β-Receptor Blockers
Tonicity in Plants
Antifungal Agents
Drugs Affecting GI Tract Motility: Adsorbents as Antidiarrheal Agents
Adsorbents...
Antiasthma Drugs: Muscarinic Receptor Antagonists
Antimuscarinic agents compete with ACh for the same binding site on the muscarinic receptors. By binding to these receptors, they inhibit the downstream effects of ACh and block the parasympathetic...
Anthelminthic Agents
