Synthesis and Structure−Affinity Relationships of 1-[ω-(4-Aryl-1-piperazinyl)alkyl]-1-aryl Ketones as 5-HT7 Receptor Ligands
摘要:
Structural requirements for 5-HT7 receptor affinity and selectivity over that for the 5-HT1A receptor were studied on a series of 1-[omega-(4-aryl-1-piperazinyl)alkyl] - I-aryl ketones. The presence of a hydroxy or methoxy substituent on aryl ketone moiety, alkyl chain length, and the nature of N-1-piperazine substituent were explored. 6-[4-(3-Benzisoxazolyl)-l-piperazinyl]-1-(2-hydroxyphenyl)-1-hexanone (40) and its methoxy analogue 43 exhibited high 5-HT7 receptor affinities (K-i = 2.93 nM and 0.90 nM, respectively) and agonist properties when tested for 5-HT7 receptor-mediated relaxation of substance P-induced guinea-pig ileum contraction.
Synthesis and Structure−Affinity Relationships of 1-[ω-(4-Aryl-1-piperazinyl)alkyl]-1-aryl Ketones as 5-HT7 Receptor Ligands
摘要:
Structural requirements for 5-HT7 receptor affinity and selectivity over that for the 5-HT1A receptor were studied on a series of 1-[omega-(4-aryl-1-piperazinyl)alkyl] - I-aryl ketones. The presence of a hydroxy or methoxy substituent on aryl ketone moiety, alkyl chain length, and the nature of N-1-piperazine substituent were explored. 6-[4-(3-Benzisoxazolyl)-l-piperazinyl]-1-(2-hydroxyphenyl)-1-hexanone (40) and its methoxy analogue 43 exhibited high 5-HT7 receptor affinities (K-i = 2.93 nM and 0.90 nM, respectively) and agonist properties when tested for 5-HT7 receptor-mediated relaxation of substance P-induced guinea-pig ileum contraction.
Synthesis and Structure−Affinity Relationships of 1-[ω-(4-Aryl-1-piperazinyl)alkyl]-1-aryl Ketones as 5-HT<sub>7</sub> Receptor Ligands
作者:Roberto Perrone、Francesco Berardi、Nicola A. Colabufo、Enza Lacivita、Marcello Leopoldo、Vincenzo Tortorella
DOI:10.1021/jm020994z
日期:2003.2.1
Structural requirements for 5-HT7 receptor affinity and selectivity over that for the 5-HT1A receptor were studied on a series of 1-[omega-(4-aryl-1-piperazinyl)alkyl] - I-aryl ketones. The presence of a hydroxy or methoxy substituent on aryl ketone moiety, alkyl chain length, and the nature of N-1-piperazine substituent were explored. 6-[4-(3-Benzisoxazolyl)-l-piperazinyl]-1-(2-hydroxyphenyl)-1-hexanone (40) and its methoxy analogue 43 exhibited high 5-HT7 receptor affinities (K-i = 2.93 nM and 0.90 nM, respectively) and agonist properties when tested for 5-HT7 receptor-mediated relaxation of substance P-induced guinea-pig ileum contraction.