Alpha-ethyltryptamines as dual dopamine–serotonin releasers
摘要:
The dopamine (DA), serotonin (5-HT), and norepinephrine (NE) transporter releasing activity and serotonin-2A (5-HT2A) receptor agonist activity of a series of substituted tryptamines are reported. Three compounds, 7b, (+)-7d and 7f, were found to be potent dual DA/5-HT releasers and were > 10-fold less potent as NE releasers. Additionally, these compounds had different activity profiles at the 5-HT2A receptor. The unique combination of dual DA/5-HT releasing activity and 5-HT2A receptor activity suggests that these compounds could represent a new class of neurotransmitter releasers with therapeutic potential. (C) 2014 Elsevier Ltd. All rights reserved.
Pharmacologically valuable 3-(aminopropyl)-indoles have the general formula ##SPC1## In which R.sub.1 is phenyl, halophenyl, nitrophenyl, aminophenyl, loweralkoxyphenyl or pyridyl, R.sub.2 is hydrogen or methyl, R.sub.3 and R.sub.4 are each hydrogen or lower alkyl or taken together form a polymethylene group which may be interrupted by oxygen so that --NR.sub.3 R.sub.4 is a heteromonocycle having 5 or 6 nuclear atoms and R.sub.5 is hydrogen, fluorine, chlorine or methoxy. Especially interesting are those compounds in which at least one of R.sub.1 and R.sub.5 comprises a flourine atom and --NR.sub.3 R.sub.4 is pyrrolidino. The compounds are made by condensation of correspondingly substituted indolylacetones with amines HNR.sub.3 R.sub.4 in a reducing medium or, in certain cases, by reduction of correspondingly substituted indolylacetoximes with or without subsequent lower alkylation.
The invention relates to organic compounds which have interesting pharmaceutical properties. In particular, the compounds are useful in the treatment and/or prevention of infections such as those caused by
Plasmodium falciparum, Plasmodium vivax, Plasmodium malariae, Plasmodium ovale, Trypanosoma cruzi
and parasites of the
Leishmania
genus such as, for example,
Leishmania donovani
. The invention also relates to pharmaceutical compositions containing the compounds, as well as processes for their preparation.
Alpha-ethyltryptamines as dual dopamine–serotonin releasers
作者:Bruce E. Blough、Antonio Landavazo、John S. Partilla、Ann M. Decker、Kevin M. Page、Michael H. Baumann、Richard B. Rothman
DOI:10.1016/j.bmcl.2014.07.062
日期:2014.10
The dopamine (DA), serotonin (5-HT), and norepinephrine (NE) transporter releasing activity and serotonin-2A (5-HT2A) receptor agonist activity of a series of substituted tryptamines are reported. Three compounds, 7b, (+)-7d and 7f, were found to be potent dual DA/5-HT releasers and were > 10-fold less potent as NE releasers. Additionally, these compounds had different activity profiles at the 5-HT2A receptor. The unique combination of dual DA/5-HT releasing activity and 5-HT2A receptor activity suggests that these compounds could represent a new class of neurotransmitter releasers with therapeutic potential. (C) 2014 Elsevier Ltd. All rights reserved.