[EN] LABELED OXAZINOCARBAZOLES AS DIAGNOSTIC AGENTS<br/>[FR] OXAZINOCARBAZOLES MARQUES UTILES EN TANT QU'AGENTS DE DIAGNOSTIC
申请人:UPJOHN CO
公开号:WO2003089438A1
公开(公告)日:2003-10-30
The present invention provides isotopically labeled oxazinocarbazole derivatives having a ring connecting position 8 (C-8) and position 9 (N-9), and more specifically, provides compounds of formula (I) wherein R1, R2, R3 and R4 are described herein. These compounds are useful in the diagnostic analysis of diseases wherein modulation of 5-HT activity is desired.