Discovery of a 1-isopropyltetrahydroisoquinoline derivative as an orally active N-type calcium channel blocker for neuropathic pain
作者:Takashi Ogiyama、Koichi Yonezawa、Makoto Inoue、Toshihiro Watanabe、Yukihito Sugano、Takayasu Gotoh、Tetsuo Kiso、Akiko Koakutsu、Shuichiro Kakimoto、Jun-ichi Shishikura
DOI:10.1016/j.bmc.2015.05.030
日期:2015.8
therapeutic approach for the treatment of neuropathic pain. Starting from lead compound (S)-1, we focused our optimization efforts on potency for N-type calcium channel inhibition and improvement of CYP inhibition profile. 2-[(1-Hydroxycyclohexyl)methyl]amino}-(1R)-(1-isopropyl-6-methoxy-3,4-dihydroisoquinolin-2(1H)-yl)ethanone oxalate ((R)-5r) was identified as a novel orally active small-molecule N-type
N型钙通道阻滞是一种治疗神经性疼痛的有前途的治疗方法。从铅化合物(S)-1开始,我们将优化工作的重点放在了抑制N型钙通道和改善CYP抑制谱上。2-[((1-羟基环己基)甲基]氨基}-(1 R)-(1-异丙基-6-甲氧基-3,4-二氢异喹啉-2(1 H)-基)乙酮乙二酸酯((R)-5r)被确定为具有降低的CYP抑制作用的新型口服活性小分子N型钙通道抑制剂。口服(R)-5rED 50值为2.5 mg / kg的大鼠在神经性疼痛的脊髓神经结扎模型中改善了机械性异常性疼痛。