Related Experiment Video
Updated: Apr 24, 2026

Preparation of Gynura bicolor DC samples for High-Resolution Tandem Mass Spectrometry
Published on: February 2, 2024
A new dihydrofuranocoumarin from Opopanax hispidus (Friv.) Griseb
Sabrieh Ghasemi1, Zohreh Habibi
1a Department of Pure Chemistry , Faculty of Chemistry, Shahid Beheshti University, G.C. , Tehran , Iran.
Abstract:
Phytochemical investigation of chloroform extract of the aerial parts of Opopanax hispidus afforded a new dihydrofuranocoumarin, 3'-isobutyryl-3'-hydroxymarmesin (1a), together with six known coumarins, oreoselon, peucedanin, officinalin, smirniorin, 4'-acetyl-3'-isobutyryl-3'-hydroxymarmesin and 3'-hydroxyprantschimgin. The structures of the compounds were determined by their comprehensive spectroscopic analysis (IR, EI-MS, (1)H NMR, (13)C NMR, HMBC, COSY, HMBC and HMQC), elemental analysis and comparison with literature data.
More Related Videos
09:56Real-time Monitoring of Reactions Performed Using Continuous-flow Processing: The Preparation of 3-Acetylcoumarin as an Example
Published on: November 18, 2015
07:29HPLC Coupled with Chemical Fingerprinting for Multi-Pattern Recognition for Identifying the Authenticity of Clematidis Armandii Caulis
Published on: November 11, 2022
Related Concept Videos
Opioid Analgesics: Morphine and Other Natural Cogeners
Opioid Analgesics: Synthetic and Semisynthetic Opioids
Anticoagulant Drugs: Vitamin K Antagonists and Direct Oral Anticoagulants
Warfarin, a prominent vitamin K antagonist family member, exerts its effect by inhibiting the enzyme VKORC1 (vitamin K epoxide reductase complex 1). By hindering this enzyme, warfarin...
Antihypertensive Drugs: Action of Diuretics