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Tetrazolylpropan-2-ones as Inhibitors of Fatty Acid Amide Hydrolase: Studies on Structure-Activity Relationships and Metabolic Stability

David Garzinsky, Stefan Zahov, Merlin Ekodo Voundi, Walburga Hanekamp, Matthias Lehr

Eur J Med Chem. 2018 Dec 5;160:183-192.

PMID: 30340141

Abstract:

A series of derivatives of 1-(4-octylphenoxy)-3-(2H-tetrazol-2-yl)propan-2-one (3) and 1-(4-octylphenoxy)-3-(1H-tetrazol-1-yl)propan-2-one (4) was synthesized and tested for fatty acid amide hydrolase (FAAH) inhibitory potency and phase I metabolic stability. Introduction of certain substituents like 4-chlorophenyl, 4-methoxycarbonylphenyl and carboxyl in position 5 of the tetrazole ring of 3 led to a significant increase of the metabolic stability of the scissile ketone pharmacophore, while the high activity towards FAAH was not affected markedly. In contrast, substituents in position 5 of the heterocyclic system of 4 did not have a considerable impact on the undesired ketone reduction. Furthermore, the effect of shielding the ketone group of some derivatives of 3 by a methyl substituent in position 3 of the propan-2-one scaffold and the consequences of the replacement of the lipophilic octyl residue of these compounds by more drug-like substituents were examined.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP499193543 3-Trimethylsilanylethynyl-pyridine-2-carboxylic acid amide 3-Trimethylsilanylethynyl-pyridine-2-carboxylic acid amide 499193-54-3 Price
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