Selective thromboxane synthetase inhibitors. 3. 1H-imidazol-1-yl-substituted benzo[b]furan-, benzo[b]thiophene-, and indole-2- and -3-carboxylic acids.

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Cross PE, Dickinson RP, Parry MJ, Randall MJ

Selective thromboxane synthetase inhibitors. 3. 1H-imidazol-1-yl-substituted benzo[b]furan-, benzo[b]thiophene-, and indole-2- and -3-carboxylic acids.

J Med Chem. 1986 Sep;29(9):1637-43.

PubMed ID

3746813 [ View in PubMed

]

Abstract

The preparation of a series of 1H-imidazol-1-yl-substituted benzo[b]furan-, benzo[b]thiophene-, and indolecarboxylic acids is described. Most of the compounds were potent inhibitors of TxA2 synthetase in vitro, and the distance between the imidazole and carboxylic acid groups was found to be important for optimal potency. The most potent compound in vivo was 6-(1H-imidazol-1-ylmethyl)-3-methylbenzo[b]thiophene-2-carboxylic acid (71), which, in conscious dogs, showed a similar profile of activity to that of dazoxiben (1).

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Binding Properties

Drug	Target	Property	Measurement	pH	Temperature (°C)
Dazoxiben	Thromboxane-A synthase	IC 50 (nM)	3	N/A	N/A	Details