113243-00-8

L-657926 is a stereoselective antagonist of the thromboxane A2 (TxA2) receptor, composed of (-)-9-chlorobenzyl-6-fluoro-1,2,3,4-tetrahydrocarbazol-1-yl acetic acid and (+)-9-chlorobenzyl-6-fluoro-1,2,3,4-tetrahydrocarbazol-l-yl acetic acid. The IC50s of (-) and (+) configurations for TxA2 are 0.27 nM and 124 nM, respectively.

[1] Folger WH, Halushka PV, Wilcox CS, Guzman NJ. Characterization of rat glomerular thromboxane A2 receptors: comparison to rat platelets. Eur J Pharmacol. 1992 Sep 1;227(1):71-8. DOI:10.1016/0922-4106(92)90144-k