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Updated: Jul 11, 2026
07:51
Administration of Δ9-Tetrahydrocannabinol (THC) in Adolescent and Adult Mice
Published on: August 1, 2025
Novel, potent THC/anandamide (hybrid) analogs
Caryl Bourne1, Sucharita Roy, Jenny L Wiley
1Organix, Inc., Woburn, MA 01801, USA.
Bioorganic & Medicinal Chemistry
|September 11, 2007
Summary
Researchers explored structural similarities between anandamide (AEA) and Delta(9)-tetrahydrocannabinol (THC) by creating hybrid molecules. Hybrid 1 demonstrated high CB1 receptor binding affinity, guiding further structure-activity relationship studies.
Area of Science:
- Medicinal Chemistry
- Neuroscience
- Pharmacology
Background:
- The structure-activity relationship (SAR) of anandamide's (AEA) pentyl chain mirrors that of Delta(9)-tetrahydrocannabinol (THC).
- Understanding shared structural features between AEA and THC is crucial for developing novel cannabinoid receptor ligands.
Purpose of the Study:
- To investigate the structural similarities between AEA and THC by designing and synthesizing hybrid molecules.
- To explore the SAR of modified hybrid structures targeting CB1 and CB2 receptors.
Main Methods:
- Design and synthesis of hybrid molecules linking the aromatic ring of THC-DMH to the AEA moiety via an ether linkage.
- Evaluation of CB1 and CB2 receptor binding affinities for synthesized analogs.
- Assessment of in vivo activity using tetrad tests.
Main Results:
- Hybrid 1 (O-2220) exhibited high binding affinity to CB1 receptors (Ki = 8.5 nM).
- The side chain orientation in Hybrid 1 is consistent with that observed in THCs.
- Further modifications to the terminal carbon of the side chain were explored to refine SAR.
Conclusions:
- Hybrid molecules can effectively bridge structural similarities between AEA and THC.
- The synthesized analogs provide valuable insights into the SAR of cannabinoid receptor ligands.
- These findings contribute to the development of new compounds targeting the endocannabinoid system.
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