| abstract |
The present invention provides a novel benzoazepine compound having excellent properties such as maintaining a blood concentration of tolvaptan, which is a vasopressin antagonist, over a long period of time. A benzazepine compound represented by the formula (1) or a salt thereof [R 1 is a group —CO— (CH 2 ) n —COR 2 or the like; R 2 is a hydroxyl group; a hydroxyl group, a lower alkanoyl group or the like as a substituent, or 5-methyl-2-oxo-1,3-dioxol-4- A lower alkoxy group which may have an yl group; or an amino group which may have a hydroxy lower alkyl group as a substituent] [Selection figure] None |