Synthesis and Structure−Activity Relationships of <i>N</i>-Propyl-<i>N</i>-(4-pyridinyl)-1<i>H</i>-indol-1-amine (Besipirdine) and Related Analogs as Potential Therapeutic Agents for Alzheimer's Disease
作者:Joseph T. Klein、Larry Davis、Gordon E. Olsen、George S. Wong、Francis P. Huger、Craig P. Smith、Wayne W. Petko、Michael Cornfeldt、Jeffrey C. Wilker、R. D. Blitzer、E. Landau、V. Haroutunian、Lawrence L. Martin、Richard C. Effland
DOI:10.1021/jm9506433
日期:1996.1.1
A series of novel N-(4-pyridinyl)-1H-indol-1-amines and other heteroaryl analogs was synthesized and evaluated in tests to determine potential utility for the treatment of Alzheimer's disease. From these compounds, N-propyl-N-(4-pyridinyl)-1H-indol-1-amine (besipirdine, 4c) was selected for clinical development based on in-depth biological evaluation. In addition to cholinomimetic properties based initially on in vitro inhibition of [H-3]quinuclidinyl benzilate binding, in. vivo reversal of scopolamine-induced behavioral deficits, and subsequently on other results, 4c also displayed enhancement of adrenergic mechanisms as evidenced in vitro by inhibition of [H-3]clonidine binding and synaptosomal biogenic amine uptake, and in vivo by reversal of tetrabenazine-induced ptosis. The synthesis, structure-activity relationships for this series, and the biological profile of 4c are reported.