Related Experiment Video
Updated: May 8, 2026

A Customizable Approach for the Enzymatic Production and Purification of Diterpenoid Natural Products
Published on: October 4, 2019
Abietane diterpenes from Hyptis suaveolens.
Saowanee Prawatsri1, Apichart Suksamrarn, Anon Chindaduang
1Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Ramkhamhaeng University, Bangkok 10240, Thailand.
Researchers identified three new abietane diterpenes from the Hyptis suaveolens plant. These compounds, along with known ones, were analyzed for potential antimycobacterial and cytotoxic effects.
Area of Science:
- Natural Product Chemistry
- Phytochemistry
- Organic Chemistry
Background:
- Hyptis suaveolens is a plant species known for its diverse chemical constituents.
- Diterpenes are a class of organic compounds with various biological activities.
- Natural products are a rich source for drug discovery.
Purpose of the Study:
- To isolate and characterize new diterpenoid compounds from Hyptis suaveolens.
- To investigate the chemical constituents of the whole plant.
- To evaluate the antimycobacterial and cytotoxic potential of isolated compounds.
Main Methods:
- Phytochemical investigation of Hyptis suaveolens whole plant.
- Isolation of compounds using chromatographic techniques.
- Structure elucidation of new compounds via spectroscopic methods (NMR, MS) and chemical correlations.
- Biological screening for antimycobacterial and cytotoxic activities.
Main Results:
- Isolation of three novel abietane diterpenes: isosuaveolic acid (1), 8α,9α-epoxysuaveolic acid (2), and 14-O-methylsuaveolic acid (3).
- Identification of eleven known compounds from the plant extract.
- Establishment of the structures of the new compounds through comprehensive spectroscopic analysis and chemical transformations.
- Preliminary assessment of antimycobacterial and cytotoxic activities of selected isolates.
Conclusions:
- Hyptis suaveolens is a valuable source of structurally unique abietane diterpenes.
- The newly discovered compounds warrant further investigation for their therapeutic potential.
- The study contributes to the understanding of the phytochemical diversity of Hyptis suaveolens and its potential bioactivities.
Related Concept Videos
Stability of Conjugated Dienes
A comparison of the enthalpies of hydrogenation of dienes reveals that conjugated dienes release less heat on hydrogenation, rendering them more stable than their nonconjugated analogs.
Aromatic Compounds: Overview
In 1825, Faraday isolated benzene...
Structure of Conjugated Dienes
Conjugated dienes are compounds characterized by the presence of alternating double and single bonds. In a conjugated system like 1,3-butadiene, the unhybridized 2p orbital on each carbon overlaps continuously, allowing the π electrons to be delocalized across the entire molecule. In contrast, this type of overlap does not occur in cumulated and isolated dienes, such as 2,3-pentadiene and 1,4-pentadiene, respectively. Instead, the π electrons remain localized between the double...
Antifungal Agents
Nomenclature of Aromatic Compounds with a Single Substituent

