A Practical Synthesis of the Platelet Fibrinogen Antagonist, Elarofiban
摘要:
Elarofiban is a novel, nonpeptide, orally active fibrinogen receptor antagonist useful for the treatment of platelet mediated thrombotic disorders (Costanzo, M. J.; Hoekstra, W. J.; Maryanoff, B. E. WO, 97/41102,1997). Herein we describe the process research that was carried out for the synthesis of elarofiban that eventually led to the development of a safe and cost-effective commercial scale process.
An Expedient Method for Resolution of 3-Amino-3-(3‘-pyridyl)propionic Acid and Related Compounds
作者:Heinz Boesch、Sergio Cesco-Cancian、Leonard R. Hecker、William J. Hoekstra、Michael Justus、Cynthia A. Maryanoff、Lorraine Scott、Rekha D. Shah、Guenter Solms、Kirk L. Sorgi、Stephen M. Stefanick、Urs Thurnheer、Frank J. Villani,、Donald G. Walker
DOI:10.1021/op990192m
日期:2001.1.1
Preparation of methyl (S)-3-amino-3-(3‘-pyridyl)propionate dihydrochloride in high enantiomeric purity by selective crystallization of a diastereomeric salt of a carboxylic acid precursor (N-BOC-protected) with (1R,2S)-(−)-ephedrine is described. Further demonstration of the usefulness of this procedure to resolve other 3-amino-3-[(substituted)pyridyl]propionic acids is also described.