Drug Design
The first approach to develop cannabinoid antagonists in the late 1980s was to modify the structure of THC but the results were disappointing. In the early 1990s new family of cannabinoid agonists was discovered from the NSAID (non-steroidal anti-inflammatory) drug pravadoline which led to the discovery of aminoalkyl indole antagonists with some but limited success. As the search based on the structure of agonists was disappointing it was no surprise that the first potent and selective cannabinoid antagonist belonged to an entirely new chemical family. In 1994 the first selective cannabinoid antagonist, SR141716 (rimonabant), was introduced by Sanofi belonging to a family of 1,5-diarylpyrazoles.
Read more about this topic: Cannabinoid Receptor Antagonist
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