Synthesis and Evaluation of Novel 2-Oxo-1,2-dihydro-3-quinolinecarboxamide Derivatives as Serotonin 5-HT4 Receptor Agonists.
作者:Masaji SUZUKI、Yutaka OHUCHI、Hajime ASANUMA、Toshie KANEKO、Sadakazu YOKOMORI、Chika ITO、Yoshihiko ISOBE、Makoto MURAMATSU
DOI:10.1248/cpb.48.2003
日期:——
A series of N-azabicycloalkyl-1-alkyl-2-oxo-1, 2-dihydro-3-quinolinecarboxamides were synthesized and tested for serotonin 5-HT4 receptor-stimulating effects in the regulation of electrically-evoked contraction in guinea pig muscle. Among them, N-azabicycloalkyl-1-isopropyl-2-oxo-1, 2-dihydro-3-quinolinecarboxamide (8c, 9c, 10c, 11c, 12c) exhibited potent serotonin 5-HT4 receptor-stimulating activity. The most potent compound, N-(endo-8-methyl-8-azabicyclo[3.2.1]oct-3-yl)-1-isopropyl-2-oxo-1, 2-dihydro-3-quinolinecarboxamide (8c, ED50=36.3 nM), was seven times as active as cisapride, while 8c had no affinity for 5-HT1A, 5-HT1D, D2, muscarinic M2 or muscarinic M3 receptors even at 10μM. Compound 8c stimulated digestive tract motility in conscious fed dogs (1.0 mg/kg p.o.).
合成了一系列N-氮杂双环烷基-1-烷基-2-氧代-1,2-二氢-3-喹啉羧酰胺,并测试其在调节豚鼠肌肉电刺激收缩中对血清素5-HT4受体的刺激作用。在这些化合物中,N-氮杂双环烷基-1-异丙基-2-氧代-1,2-二氢-3-喹啉羧酰胺(8c,9c,10c,11c,12c)表现出强效的血清素5-HT4受体刺激活性。其中,最强效的化合物N-(内源性-8-甲基-8-氮杂双环[3.2.1]八烷-3-基)-1-异丙基-2-氧代-1,2-二氢-3-喹啉羧酰胺(8c,ED50=36.3 nM)其活性是西沙必利的七倍,而8c在10μM时对5-HT1A、5-HT1D、D2、毒蕈碱M2或毒蕈碱M3受体均没有亲和力。化合物8c在进食状态下的意识犬中刺激消化道运动(1.0 mg/kg,口服)。