BALANCED AT(1) AT(2) RECEPTOR ANTAGONISTS .4. XR510 AND RELATED 5-(3-AMIDOPROPANOYL)IMIDAZOLES POSSESSING EQUAL AFFINITY FOR THE AT(1) AND AT(2) RECEPTORS/
Ml. Quan et al., BALANCED AT(1) AT(2) RECEPTOR ANTAGONISTS .4. XR510 AND RELATED 5-(3-AMIDOPROPANOYL)IMIDAZOLES POSSESSING EQUAL AFFINITY FOR THE AT(1) AND AT(2) RECEPTORS/, Journal of medicinal chemistry, 38(15), 1995, pp. 2938-2945
The identification of the AT(1) and AT(2) receptor subtypes has stimul
ated interest in developing balanced angiotensin II receptor antagonis
ts. A series of 5-(3-amidopropanoyl)imidazoles has been prepared which
possess balanced affinity for the AT(1) and AT(2) receptors. XR510 (1
), 1-[[2'-[[(isopentoxycarbonyl)amino]sulfonyl]-3- oro(1,1'-biphenyl)-
4-yl]methyl]-5-[3-(N-pyridin-3- tanamido)propanoyl]-4-ethyl-2-propyl-1
H-imidazole, potassium salt, exhibits subnanomolar affinity for both r
eceptor sites. XR510 is very active in lowering blood pressure in rena
l hypertensive rats and furosemide-treated dogs following oral adminis
tration.