Carbamoylcholine homologs: synthesis and pharmacology at nicotinic acetylcholine receptors.
In a recent study, racemic 3-(N,N-dimethylamino)butyl-N,N-dimethylcarbamate (1) was shown to be a potent agonist at neuronal nicotinic acetylcholine receptors with a high selectivity for nicotinic over muscarinic acetylcholine receptors [Mol. Pharmacol. 64 (2003) 865-875]. Here we present the synthesis and pharmacological characterization of a series of analogs of, where the methyl group at C-3 has been replaced by different alkyl substituents. Ring systems have been incorporated into the carbon backbone of some of the molecules, or the amino group has been build into ring systems. Furthermore, the (+)- and (-)-enantiomers of have been separated, and X-ray crystallography has revealed that (-)-1 possesses (S)-configuration. The compounds have been characterized pharmacologically at recombinant nicotinic receptor subtypes. The structure-activity relationship study has provided valuable insight into the mode of interactions of and its analogs with neuronal nicotinic acetylcholine receptors.
Department of Medicinal Chemistry, The Danish University of Pharmaceutical Sciences, Universitetsparken 2, DK-2100 Copenhagen, Denmark. aaj@dfuni.dk
Anders A
AA
Jensen
Ivan
I
Mikkelsen
Bente
B
Frølund
Karla
K
Frydenvang
Lotte
L
Brehm
Jerzy W
JW
Jaroszewski
Hans
H
Bräuner-Osborne
Erik
E
Falch
Povl
P
Krogsgaard-Larsen
D000818:Animals; D002217:Carbachol / Q000031:analogs & derivatives* / Q000138:chemical synthesis* / Q000378:metabolism / Q000494:pharmacology; D002460:Cell Line; D004305:Dose-Response Relationship, Drug; D006801:Humans; D011485:Protein Binding / Q000187:drug effects / Q000502:physiology; D051381:Rats; D011978:Receptors, Nicotinic / Q000378:metabolism*; D013329:Structure-Activity Relationship
D011978:Receptors, Nicotinic; D002217:Carbachol