Synthesis and in vitro activity of stereoisomers of a novel thromboxane receptor antagonist, (.+-.)-(5Z)-7-[(3-endo-[(phenylsulfonyl)amino]bicyclo[2.2.1]hept-2-exo-yl]heptenoic acid
作者:Mitsuaki Ohtani、Masayuki Narisada
DOI:10.1021/jm00165a022
日期:1990.3
Three stereoisomers of S-145 (1) with variations at the side-chain junctions were synthesized. Endo-cis isomer 10 and N-exo-trans isomer 18 were obtained via the common intermediate 5 having an endo-fused ring structure. Exo-cis isomer 28 was prepared via exo-fused azetidino compound 21. Inhibitory concentrations (IC50) of the sodium salts newly obtained for platelet aggregation were measured using