1-Aryl-3-(4-pyridine-2-ylpiperazin-1-yl)propan-1-one Oximes as Potent Dopamine D4 Receptor Agonists for the Treatment of Erectile Dysfunction
摘要:
A new series of dopamine D-4 receptor agonists, 1-aryl-3-(4-pyridinepiperazin-1-yl) propanone oximes, was designed through the modification of known dopamine D4 receptor agonist PD 168077. Replacement of the amide group with a methylene-oxime moiety produced compounds with improved stability and efficacy. Structure-activity relationsips (SAR) of the aromatic ring linked to the N-4-piperazine ring confirmed the superiority of 2-pyridine as a core for D4 agonist activity. A two-methylene linker between the oxime group and the N-1-piperazine ring displayed the best profile. New dopamine D4 receptor agonists, exemplified by (E)-1-(4-chlorophenyl)-3-(4-pyridin-2-ylpiperazin-1-yl) propan-1-one O-methyloxime (59a) and (E)-1-(3-chloro- 4-fluorophenyl)-3-(4-pyridin-2-ylpiperazin-1-yl) propan-1-one O-methyloxime (64a), exhibited favorable pharmacokinetic profiles and showed oral bioavailability in rat and dog. Subsequent evaluation of 59a in the rat penile erection model revealed in vivo activity, comparable in efficacy to apomorphine. Our results suggest that the oximes provide a novel structural linker for 4-arylpiperazine-based D4 agonists, possessing leadlike quality and with potential to develop a new class of potent and selective dopamine D4 receptor agonists.
Oximes and hydrazones that are useful in treating sexual dysfunction
申请人:Kolasa Teodzyj
公开号:US20050176727A1
公开(公告)日:2005-08-11
The present invention relates to oximes and hydrazones of formula (I)
for the treatment of sexual dysfunction and to compositions containing compounds of formula (I) for the treatment of sexual dysfunction.
New 1-Aryl-3-(4-arylpiperazin-1-yl)propane Derivatives, with Dual Action at 5-HT<sub>1A</sub> Serotonin Receptors and Serotonin Transporter, as a New Class of Antidepressants
作者:Javier Martínez-Esparza、Ana-M. Oficialdegui、Silvia Pérez-Silanes、Begoña Heras、Lara Orús、Juan-A. Palop、Berta Lasheras、Joan Roca、Marisa Mourelle、Ana Bosch、Juan-C. Del Castillo、Rosa Tordera、Joaquín Del Río、Antonio Monge
DOI:10.1021/jm001059j
日期:2001.2.1
In a search toward new and efficient antidepressants, 1-aryl-3-(4-arylpiperazin-1-yl)propanederivatives were designed, synthesized, and evaluated for 5-HT reuptake inhibition and 5-HT1A receptor antagonism. This dual pharmacological profile should lead, in principle, to a rapid and pronounced enhancement in serotoninergic neurotransmission and consequently to a more efficacious treatment of depression
1-Aryl-3-(4-pyridine-2-ylpiperazin-1-yl)propan-1-one Oximes as Potent Dopamine D<sub>4</sub> Receptor Agonists for the Treatment of Erectile Dysfunction
作者:Teodozyj Kolasa、Mark A. Matulenko、Ahmed A. Hakeem、Meena V. Patel、Kathleen Mortell、Pramila Bhatia、Rodger Henry、Masaki Nakane、Gin C. Hsieh、Marc A. Terranova、Marie E. Uchic、Loan N. Miller、Renje Chang、Diana L. Donnelly-Roberts、Marian T. Namovic、Peter R. Hollingsworth、Brenda Martino、Odile El Kouhen、Kennan C. Marsh、Jill M. Wetter、Robert B. Moreland、Jorge D. Brioni、Andrew O. Stewart
DOI:10.1021/jm060279f
日期:2006.8.1
A new series of dopamine D-4 receptor agonists, 1-aryl-3-(4-pyridinepiperazin-1-yl) propanone oximes, was designed through the modification of known dopamine D4 receptor agonist PD 168077. Replacement of the amide group with a methylene-oxime moiety produced compounds with improved stability and efficacy. Structure-activity relationsips (SAR) of the aromatic ring linked to the N-4-piperazine ring confirmed the superiority of 2-pyridine as a core for D4 agonist activity. A two-methylene linker between the oxime group and the N-1-piperazine ring displayed the best profile. New dopamine D4 receptor agonists, exemplified by (E)-1-(4-chlorophenyl)-3-(4-pyridin-2-ylpiperazin-1-yl) propan-1-one O-methyloxime (59a) and (E)-1-(3-chloro- 4-fluorophenyl)-3-(4-pyridin-2-ylpiperazin-1-yl) propan-1-one O-methyloxime (64a), exhibited favorable pharmacokinetic profiles and showed oral bioavailability in rat and dog. Subsequent evaluation of 59a in the rat penile erection model revealed in vivo activity, comparable in efficacy to apomorphine. Our results suggest that the oximes provide a novel structural linker for 4-arylpiperazine-based D4 agonists, possessing leadlike quality and with potential to develop a new class of potent and selective dopamine D4 receptor agonists.
Synthesis of benzenepropanamine analogues as non-detergent spermicides with antitrichomonas and anticandida activities
Fifteen analogues of benzenepropanamine were synthesized and evaluated for their spermicidal as well as microbicidal activities against Trichomonas vaginalis and Candida spp. Several compounds showed appreciable dual activities. Compound 12 exhibited good spermicidal (MEC = 0.1%) along with substantial anticandidal (MIC = 0.05%) activities, while compounds 3 and 6 showed significant microbicidal activities with moderate spermicidal effect. The SAR of these structures is being discussed here in this communication. It is concluded that suitable structural modifications in this class of compounds at 3-amino position may lead to a potent spermicide with associated microbicidal activity. (c) 2006 Elsevier Ltd. All rights reserved.