Synthesis and 5-HT1A, 5-HT2A receptor activity of new β-tetralonohydantoins
摘要:
A series of new 3-[4-(4-arylpiperazinyl)-butyl]-beta-tetralonohydantoins (8a-13a) were synthesized. The compounds exhibited high affinity for 5-HT1A receptors K-i = 6 to 55 nM) combined with moderate-to-high 5-HT2A receptor aftinities (K-t = 45 to 213 nM). The results of in vivo studies indicated that of the compounds tested, 3-[4-(4-phenylpiperazinyl)-butyl-beta-tetralonohydantoin (8a) showed features of full (pre- and postsynaptic) 5-HT1A receptor agonists, whereas compounds 9a-13a behaved like antagonists of postsynaptic 5-HT1A receptors, additionally, compound 13a produced an effect characteristic of presynaptic 5-HT1A receptor agonists, Moreover, compounds 8aand 10a-13a exhibited properties of 5-HT2A receptor antagonists. Due to the most interesting 5-HT1A/5-HT2A functional profile compounds 8a and 13a were further tested for their potential psychotropic activity. In fact. compound 8a (but not 13a) showed diazepam-like anxiolytic activity and behaved Re a weak antidepressant. (c) 2005 Elsevier SAS. All rights reserved.
Synthesis and 5-HT1A, 5-HT2A receptor activity of new β-tetralonohydantoins
摘要:
A series of new 3-[4-(4-arylpiperazinyl)-butyl]-beta-tetralonohydantoins (8a-13a) were synthesized. The compounds exhibited high affinity for 5-HT1A receptors K-i = 6 to 55 nM) combined with moderate-to-high 5-HT2A receptor aftinities (K-t = 45 to 213 nM). The results of in vivo studies indicated that of the compounds tested, 3-[4-(4-phenylpiperazinyl)-butyl-beta-tetralonohydantoin (8a) showed features of full (pre- and postsynaptic) 5-HT1A receptor agonists, whereas compounds 9a-13a behaved like antagonists of postsynaptic 5-HT1A receptors, additionally, compound 13a produced an effect characteristic of presynaptic 5-HT1A receptor agonists, Moreover, compounds 8aand 10a-13a exhibited properties of 5-HT2A receptor antagonists. Due to the most interesting 5-HT1A/5-HT2A functional profile compounds 8a and 13a were further tested for their potential psychotropic activity. In fact. compound 8a (but not 13a) showed diazepam-like anxiolytic activity and behaved Re a weak antidepressant. (c) 2005 Elsevier SAS. All rights reserved.
Continuing our studies connected with the design of new anxiolytics we have now synthesized a series of new compounds, derivatives of 7,8-benzo-1,3-diazaspiro[4,5]decane-2,4-dione bearing a 4-aryl-1-piperazinylbutyl group attached to the imide nitrogen. One single compound was submitted to the 5-HT1A receptor binding assay and found to display the expected-though rather weak-receptorial affinity. (C) 1998 Elsevier Science S.A. All rights reserved.