title: Synthesis and absolute configuration of the new thromboxane antagonist (3R)-3-(4-fluorophenylsulfonamido)-1,2,3,4-tetrahydro-9-carbazolepropan oic acid and comparison with its enantiomer.
abstract: The synthesis of (3R)-3-(4-Fluorophenylsulfonamido)-1,2,3,4-tetrahydro-9- carbazolepropanoic acid (Bay u 3405), a new, enantiomerically pure antagonist of thromboxane A2, is described. The determination of the absolute configuration of Bay u 3405 was performed by an X-ray analysis of compound 7 ([3((2S)-acetylamido)-3-phenylpropionamido]-1,2,3,4- tetrahydro-carbazol). Bay u 3405 is in vitro 1 to 2 orders of magnitude more active than its (-)-enantiomer Bay u 3406.
authors.affiliation: Chemisch wissenschaftliches Laboratorium, Bayer AG, Wuppertal, Fed. Rep. of Germany.
authors.forename: U
authors.initials: U
authors.lastname: Rosentreter
authors.forename: H
authors.initials: H
authors.lastname: Böshagen
authors.forename: F
authors.initials: F
authors.lastname: Seuter
authors.forename: E
authors.initials: E
authors.lastname: Perzborn
authors.forename: V B
authors.initials: VB
authors.lastname: Fiedler
mesh_terms: D019796:15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic Acid; D000818:Animals; D002227:Carbazoles / Q000138:chemical synthesis* / Q000494:pharmacology; D055598:Chemical Phenomena; D002621:Chemistry; D006801:Humans; D066298:In Vitro Techniques; D008968:Molecular Conformation; D009119:Muscle Contraction / Q000187:drug effects; D009131:Muscle, Smooth, Vascular / Q000187:drug effects; D010974:Platelet Aggregation / Q000187:drug effects; D010975:Platelet Aggregation Inhibitors; D011450:Prostaglandin Endoperoxides, Synthetic / Q000494:pharmacology; D011817:Rabbits; D013237:Stereoisomerism; D013449:Sulfonamides / Q000138:chemical synthesis* / Q000494:pharmacology; D013928:Thromboxane A2 / Q000037:antagonists & inhibitors*
chemical_list: D002227:Carbazoles; D010975:Platelet Aggregation Inhibitors; D011450:Prostaglandin Endoperoxides, Synthetic; D013449:Sulfonamides; D013928:Thromboxane A2; D019796:15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic Acid; C063119:ramatroban