[EN] ASYMMETRIC REDUCTIVE AMINATION OF KETO ACID DERIVATIVES FOR PRODUCING AMINO ACID DERIVATIVES [FR] PROCEDE DE PRODUCTION DE DERIVES D'ACIDES AMINES
[EN] ASYMMETRIC REDUCTIVE AMINATION OF KETO ACID DERIVATIVES FOR PRODUCING AMINO ACID DERIVATIVES [FR] PROCEDE DE PRODUCTION DE DERIVES D'ACIDES AMINES
Chiral oxazolidines obtained by condensation of aldehydes with (-).(R)- or (+).(S)-N-benzylphenylglycinol react with the Reformatsky reagent derived from ethylbromoacetate, in mild reaction conditions (Et2O or CH2Cl2, 0°C, 15-60 min), leading to ethyl β-amino carboxylates in moderate to good diastereomeric excess (60-92%). These ring opening products are transformed into primary β-aminoesters, in
[EN] NOVEL ISOXAZOLINE AND ISOXAZOLE FIBRINOGEN RECEPTOR ANTAGONISTS<br/>[FR] NOUVEAUX ANTAGONISTES DE RECEPTEUR DE FIBRINOGENE, A BASE D'ISOXAZOLINE ET D'ISOXAZOLE
申请人:THE DU PONT MERCK PHARMACEUTICAL COMPANY
公开号:WO1995014683A1
公开(公告)日:1995-06-01
(EN) This invention relates to novel isoxazolines and isoxazoles which are useful as antagonists of the platelet glycoprotein IIb/IIIa fibrinogen receptor complex, to pharmaceutical compositions containing such compounds, processes for preparing such compounds, and to methods of using these compounds, alone or in combination with other therapeutic agents, for the inhibition of platelet aggregation, as thrombolytics and/or for the treatment of thromboembolic disorders.(FR) L'invention se rapporte à de nouveaux isoxazoles et isoxazolines aptes à être utilisés comme antagonistes du complexe récepteur de fibrinogène/glycoprotéine plaquettaire IIb/IIIa, à des compositions pharmaceutiques contenant ces composés, à des procédés de préparation de ces derniers ainsi qu'à des procédés permettant de les utiliser, seuls ou en combinaison avec d'autres agents thérapeutiques, comme agents thrombolytiques pour inhiber l'agrégation plaquettaire, et/ou pour le traitement de troubles thromboemboliques.
[EN] ASYMMETRIC REDUCTIVE AMINATION OF KETO ACID DERIVATIVES FOR PRODUCING AMINO ACID DERIVATIVES<br/>[FR] PROCEDE DE PRODUCTION DE DERIVES D'ACIDES AMINES