tissue levels , tissue angiotensin i converting enzyme ( ace ) inhibition and hypotension were examined 20 min , 1 , 5 and 14 h after oral administration of 1- [ ( s ) -3-acetylthio-2-methylpropanoyl ] -l-prolyl-l-phenylalanine ( alacepril , du-1219 ) ( 37.5 mg ( 92 mumol ) /kg ) or 1- [ ( s ) -3-mercapto-2-methylpropanoyl ] -l-proline ( captopril ) ( 20.0 mg ( 92 mumol ) /kg ) in renal hypertensive rats , using 14c-labeled compounds .
C0033382
l-proline
C0006938
captopril