Structure−Activity Studies for a Novel Series of <i>N</i>-(Arylethyl)-<i>N</i>-(1,2,3,4-tetrahydronaphthalen-1-ylmethyl)-<i>N</i>-methylamines Possessing Dual 5-HT Uptake Inhibiting and α<sub>2</sub>-Antagonistic Activities
作者:Michael D. Meyer、Arthur A. Hancock、Karin Tietje、Kevin B. Sippy、Rajnandan Prasad、David M. Stout、David L. Arendsen、B. Greg Donner、William A. Carroll
DOI:10.1021/jm960723m
日期:1997.3.1
In search of an alpha(2)-antagonist/5-HT uptake inhibitor as a potential new class of antidepressant with a more rapid onset of action, compound 3 was prepared and observed to possess high affinity for the alpha(2)-receptor (K-i = 6.71 nM) and the 5-HT uptake site (20.6 nM). A series of tertiary amine analogs of 3 were synthesized and assayed for their affinity at both the alpha(2)-receptor and the 5-HT uptake site. The structure-activity relationship reveals that a variety of structural modifications to the arylethyl fragment are possible with retention of this dual activity. On the tetralin portion, 5-OMe substitution and the (R) stereochemistry at C-l are optimal with alternate substitutions producing compounds retaining high affinity for the alpha(2)-receptor but lacking affinity for the 5-HT uptake site. Data for several rigidified 5-O-alkyl analogs suggests that the favored orientation of the oxygen lone pairs may be away from the g-position of the tetralin.