P. Buhlmayer et al., VALSARTAN, A POTENT, ORALLY-ACTIVE ANGIOTENSIN-II ANTAGONIST DEVELOPED FROM THE STRUCTURALLY NEW AMINO-ACID SERIES, Bioorganic & medicinal chemistry letters, 4(1), 1994, pp. 29-34
Starting from the structure of DuP-753 and a 3-dimensional model of th
e pentapeptide Tyr-Ile-His-Pro-Ile, a series of new and highly potent
antagonists has been designed where the imidazole moiety of the Du Pon
t compound has been-replaced by an N-acylated aminoacid residue. VALSA
RTAN (Ex. 4e, CGP48933, -(1H-tetrazol-5-yl-)biphenyl-4-yl]methyl}-vali
ne), has been selected for clinical investigation.