Stereoselective synthesis of vinylbenzothiazoles and their epoxides.
摘要:
Vinylbenzothiazoles 2 were stereoselectively prepared through isomerization of allylbenzothiazoles 1. Oxiranes 5 and 8 were synthesized from 2 and 1 via cyclization of the corresponding bromohydrins 3, 4, 6 and 7.
The title benzothiasoles 1 react with allylicGrignard reagents affording 2-allylbenzothiazoles 5, 2,2-diallyl- benzothiazolines 6 and N-triallylmethyl-o-aminobenzenethiols as disulphides 7 depending upon the experimental conditions. The reaction is considerably influenced by the solvent used and the nature of the allylicGrignard. A possible mechanism for the formation of compounds 5, 6 and 7 is reported
[EN] GLUCAGON RECEPTOR ANTAGONIST COMPOUNDS, COMPOSITIONS CONTAINING SUCH COMPOUNDS AND METHODS OF USE<br/>[FR] COMPOSES ANTAGONISTES DU RECEPTEUR DU GLUCAGON, COMPOSITIONS CONTENANT DE TELS COMPOSES ET PROCEDES D'UTILISATION
申请人:MERCK & CO INC
公开号:WO2007111864A2
公开(公告)日:2007-10-04
[EN] Glucagon receptor antagonist compounds are disclosed. The compounds are useful for treating type 2 diabetes and related conditions. Pharmaceutical compositions and methods of treatment are also included. [FR] La présente invention concerne des composés antagonistes du récepteur du glucagon. Les composés sont utilisables pour traiter des diabètes de type 2 et les affections apparentées. L'invention concerne également des compositions pharmaceutiques et des procédés de traitement.