Patent ID: 6340676
Filing Date: 2002-01-22
Classification: C07D

Abstract:
A compound of formula I having the structure whereinB and D are each, independently, hydrogen, halogen, â€”CN, alkyl of 1-6 carbon atoms, aryl, or aralkyl of 6-12 carbon atoms; R1 is â€”CH(R2)W; R2 is â€”CH2(3-pyridyl); W is â€”CO2R3, â€”CONH2, â€”CONHOH, â€”CN, CONH(CH2)2CN, 5-tetrazole, or â€”PO3(R3)2; R3 is hydrogen, alkyl of 1-6 carbon atoms, or aryl; R4 is hydrogen or alkyl of 1-6 carbon atoms; or a pharmaceutically acceptable salt thereof.