4-Amido-2-carboxytetrahydroquinolines. Structure-activity relationships for antagonism at the glycine site of the NMDA receptor
作者:Paul D. Leeson、Robert W. Carling、Kevin W. Moore、Angela M. Moseley、Julian D. Smith、Graeme Stevenson、Tony Chan、Raymond Baker、Alan C. Foster、Sarah Grimwood、John A. Kemp、George R. Marshall、Karst Hoogsteen
DOI:10.1021/jm00089a004
日期:1992.5.1
for in vitro antagonist activity at the glycine site on the N-methyl-D-aspartate (NMDA) receptor. Optimization of the 4-substituent has provided antagonists having nanomolar affinity, including the urea trans-2-carboxy-5,7-dichloro-4[[(phenylamino)carbonyl]amino]-1,2,3, 4-tetrahydroquinoline (35; IC50 = 7.4 nM vs [3H]glycine binding; Kb = 130 nM for block of NMDA responses in the rat cortical slice),
由5,7-二氯尿嘧啶铅衍生而来的trans-2-Carboxy-5,7-dichloro-4-amidotetrahydroquinolines已合成并测试了N-甲基-D-天冬氨酸甘氨酸位点的体外拮抗剂活性(NMDA)受体。对4-取代基的优化提供了具有纳摩尔摩尔亲和力的拮抗剂,包括尿素反式-2-羧基-5,7-二氯-4 [[((苯基氨基)羰基]氨基] -1,2,3,4-四氢喹啉(35 ; IC50 = 7.4 nM vs [3H]甘氨酸结合; Kb = 130 nM用于阻断大鼠皮质切片中的NMDA反应,这是迄今发现的最有效的NMDA拮抗剂之一。发现结合的绝对立体化学要求是2S,4R,表明与其他甘氨酸位点的NMDA受体配体相同,在α-氨基酸中心需要非天然构型。如X射线晶体学和1 H NMR研究所示,反式2,4-二取代的四氢喹啉系统的优选构型放置了2-羧基伪赤道和4-取代基伪轴。4-酰胺的修饰表