Synthesis of 3,6-diazabicyclo[3.1.1]heptanes as novel ligands for neuronal nicotinic acetylcholine receptors
摘要:
F series of novel 3,6-diazabicyclo[3.1.1] heptane derivatives 4a -f was synthesized and their affinity and selectivity towards alpha 4 beta 2 and alpha 7 nAChR subtypes were evaluated. The results of the current study revealed a number of compounds (4a, 4b and 4c) having a very high affinity for alpha 4 beta 2 (Ki at alpha 4 beta 2 ranging from 0.023 to 0.056 nM) versus alpha 7 nAChR subtypes; among these compounds, the 3-(6-bromopyridin-3-yl)- 3,6-diazabicyclo[3.1.1] heptane 4c was found to be the most alpha 7 alpha 4 beta 2 selective term in receptor binding assays (alpha 7 alpha 4 beta 2 = 1295). Moreover, compound 4d also had high affinity for the a4b2 nAChR subtype (K-i = 1.2 nM) with considerably high selectivity (alpha 7/alpha 4 beta 2 = 23300). (C) 2008 Elsevier Ltd. All rights reserved.
Synthesis of 3,6-diazabicyclo[3.1.1]heptanes as novel ligands for neuronal nicotinic acetylcholine receptors
摘要:
F series of novel 3,6-diazabicyclo[3.1.1] heptane derivatives 4a -f was synthesized and their affinity and selectivity towards alpha 4 beta 2 and alpha 7 nAChR subtypes were evaluated. The results of the current study revealed a number of compounds (4a, 4b and 4c) having a very high affinity for alpha 4 beta 2 (Ki at alpha 4 beta 2 ranging from 0.023 to 0.056 nM) versus alpha 7 nAChR subtypes; among these compounds, the 3-(6-bromopyridin-3-yl)- 3,6-diazabicyclo[3.1.1] heptane 4c was found to be the most alpha 7 alpha 4 beta 2 selective term in receptor binding assays (alpha 7 alpha 4 beta 2 = 1295). Moreover, compound 4d also had high affinity for the a4b2 nAChR subtype (K-i = 1.2 nM) with considerably high selectivity (alpha 7/alpha 4 beta 2 = 23300). (C) 2008 Elsevier Ltd. All rights reserved.
Synthesis of 3,6-diazabicyclo[3.1.1]heptanes as novel ligands for neuronal nicotinic acetylcholine receptors
作者:Gabriele Murineddu、Caterina Murruzzu、Maria M. Curzu、Giorgio Chelucci、Cecilia Gotti、Annalisa Gaimarri、Laura Legnani、Lucio Toma、Gerard A. Pinna
DOI:10.1016/j.bmcl.2008.10.002
日期:2008.12
F series of novel 3,6-diazabicyclo[3.1.1] heptane derivatives 4a -f was synthesized and their affinity and selectivity towards alpha 4 beta 2 and alpha 7 nAChR subtypes were evaluated. The results of the current study revealed a number of compounds (4a, 4b and 4c) having a very high affinity for alpha 4 beta 2 (Ki at alpha 4 beta 2 ranging from 0.023 to 0.056 nM) versus alpha 7 nAChR subtypes; among these compounds, the 3-(6-bromopyridin-3-yl)- 3,6-diazabicyclo[3.1.1] heptane 4c was found to be the most alpha 7 alpha 4 beta 2 selective term in receptor binding assays (alpha 7 alpha 4 beta 2 = 1295). Moreover, compound 4d also had high affinity for the a4b2 nAChR subtype (K-i = 1.2 nM) with considerably high selectivity (alpha 7/alpha 4 beta 2 = 23300). (C) 2008 Elsevier Ltd. All rights reserved.