Functionalized congener approach for the design of novel muscarinic agents. Synthesis and pharmacological evaluation of N-methyl-N-[4-(1-pyrrolidinyl)-2-butynyl] amides
作者:Barton J. Bradbury、Jesse Baumgold、Kenneth A. Jacobson
DOI:10.1021/jm00164a044
日期:1990.2
m3AChRs. The potency in displacement of [3H]-N-methylscopolamine from both m3- and m4AChRs generally increased with increasing chain lengths of the omega-aminoalkyl congeners. The amides of 7-aminoheptanoic acid and 8-aminooctanoic acid, and their Boc-protected derivatives, had comparable affinities to UH 5 (Ki = 5.0 and 4.5 microM at m3AChRs and at m4AChRs, respectively) at both receptors but lacked
使用功能化的同类方法设计毒蕈碱胆碱能受体(mAChRs)的配体。制备了一系列N-甲基-4-(1-吡咯烷基)-2-丁炔胺的ω-官能化烷基酰胺(22)作为UH 5 [N-甲基-N- [4-(1-吡咯烷基)]的官能化类似物-2-丁炔基]乙酰胺],一种与氧代雷莫林有关的毒蕈碱激动剂。中间体22与一系列Boc保护的ω-氨基酸偶联,并且将所得的酰胺脱保护并酰化。中间体22也用琥珀酸酐酰化并衍生化。体外评估了合成中间体和最终化合物对表达m3AChRs的SK-N-SH人成神经细胞瘤细胞中磷脂酰肌醇周转的影响,以及对仅表达m4AChRs的NG108-15神经母细胞瘤x胶质瘤细胞中环状AMP产生的影响。 。还从这些细胞系的每一个中在膜制品中测量了[3 H] -N-甲基东pol碱的置换。甘氨酸和β-丙氨酸的结合物是m4AChRs的激动剂,对m3AChRs几乎没有活性。通常,随着ω-氨基烷基同类物链长的增加,从m3-和m4AChRs取代[3H]