Patent ID: 6676926
Filing Date: 2004-01-13
Classification: A61K,A61P,C07B,C07D

Abstract:
A compound of formula (I): wherein:X1 and X2 are each independently halo; R1 and R2 are each independently hydrogen or alkyl; and R3 is hydrogen, amino, monoalkylamino, dialkylamino, monoaralkylamino, alkylcarbonylamino, alkenylcarbonylamino, haloalkylcarbonylamino, arylcarbonylamino, alkoxyalkylcarbonylamino, alkoxycarbonylalkylcarbonylamino, glycinamido, monoalkylglycinamido, arylcarbonylglycinamido, aminocarbonylglycinamido, (aminocarbonyl)(alkyl)glycinamido, (alkoxyalkylcarbonyl)glycinamido, ureido, monoalkylureido, monoarylureido, monoaralkylureido, or alaninamido; and wherein either one of X1 or X2 is selected from the group of 123I, 125I, 128I, 131I, 75Br, 76Br, 80Br and 18F; or wherein one of the carbon atoms in the compound is 11C;or a pharmaceutically acceptable salt thereof.