[EN] NOVEL SPIRO IMIDAZOLONES AS GLUCAGON RECEPTOR ANTAGONISTS, COMPOSITIONS, AND METHODS FOR THEIR USE<br/>[FR] NOUVELLES SPIRO-IMIDAZOLONES EN TANT QU'ANTAGONISTES DE RÉCEPTEUR DE GLUCAGON, COMPOSITIONS ET LEURS PROCÉDÉS D'UTILISATION
申请人:SCHERING CORP
公开号:WO2011119559A1
公开(公告)日:2011-09-29
The present invention relates to compounds of the general formula: wherein ring A, ring B, R1, R3, Z, L1, and L2 are selected independently of each other and are as defined herein, to compositions comprising the compounds, and to methods of using the compounds as glucagon receptor antagonists and for the treatment or prevention of type 2 diabetes and conditions related thereto.
Amides and ketones are fluorinated or hydroxylated in HF-SbF5 in the presence of CCl4 or NBS, reaction occurring at a carbon far located from the functional group.
NOVEL SPIRO IMIDAZOLONES AS GLUCAGON RECEPTOR ANTAGONISTS, COMPOSITIONS, AND METHODS FOR THEIR USE
申请人:Wong Michael K.
公开号:US20130012434A1
公开(公告)日:2013-01-10
The present invention relates to compounds of the general formula: wherein ring A, ring B, R1, R3, Z, L1, and L2 are selected independently of each other and are as defined herein, to compositions comprising the compounds, and to methods of using the compounds as glucagon receptor antagonists and for the treatment or prevention of type 2 diabetes and conditions related thereto.
Reaction of cyclic ketones 2–6 and imines 15–17 in HF/SbF5 in presence of CCl4 yield hydroxy or fluoroderivatives, hydride abstraction occurring at a site located far from the functional group. Whereas ketones 2–5 yield only hydroxy derivatives, through cyclic carboxonium ion, imines 15, 16 N-protonated in the media conditions give only fluoroderivatives 18, 19, respectively, after quenching with HF–pyridine