This invention relates to compounds of the formulae:
wherein
A1 is O, S, N—R1 or CHR1;
A4 is N—R4 or CHR4;
R2 is a sidechain containing an acid or ester group;
R1, R4 and R5 are substituents such as H, alkyl and aryl alkyl, and
R6 is a sidechain containing a nitrogen group; and
pharmaceutically acceptable salts thereof,
which are effective for inhibiting platelet aggregation, pharmaceutical compositions for effecting such activity, and a method for inhibiting platelet aggregation.
Conformational Preferences in a Benzodiazepine Series of Potent Nonpeptide Fibrinogen Receptor Antagonists
作者:Richard M. Keenan、James F. Callahan、James M. Samanen、William E. Bondinell、Raul R. Calvo、Lichong Chen、Charles DeBrosse、Drake S. Eggleston、R. Curtis Haltiwanger、Shing Mei Hwang、Dalia R. Jakas、Thomas W. Ku、William H. Miller、Kenneth A. Newlander、Andrew Nichols、Michael F. Parker、Linda S. Southhall、Irene Uzinskas、Janice A. Vasko-Moser、Joseph W. Venslavsky、Angela S. Wong、William F. Huffman
DOI:10.1021/jm980166z
日期:1999.2.1
the exocyclic amide at the 8-position which overlaid the Arg carbonyl, the phenyl ring which maintained an extended Gly conformation, and the diazepine ring which mimicked the gamma-turn at Asp. In this paper, we investigate conformational preferences of the 8-substituted benzodiazepine analogues by examining structural modifications to both the exocyclic amide and the seven-membered diazepine ring