Synthesis, molecular modeling studies, and muscarinic receptor activity of azaprophen analogs
作者:David J. Triggle、Yong Who Kwon、Philip Abraham、J. Bruce Pitner、S. Wayne Mascarella、F. I. Carroll
DOI:10.1021/jm00115a003
日期:1991.11
cells. The alpha- and beta-benzilate esters 5 and 6 are as potent as azaprophen, and diphenylacetate esters 3 and 4 and N-(6)-benzyl alpha-isomer 7 are less potent than azaprophen. Significant stereoselectivity was exhibited with (+)-azaprophen being approximately 200 times more potent than the (-)-enantiomers and the 3 beta-ol isomer 2 being ca. 50 times less potent than azaprophen in all systems. A
已测量了一系列毒蕈碱受体配体的合成,放射性配体结合和药理活性,这些配体包括并涉及氮杂丙啶(6-甲基-6-氮杂双环[3.2.1] octan-3α-ol2,2-二苯丙酸酯,1)确定毒蕈碱受体亚型的活性和选择性。拮抗剂的药理学亲和力确定为豚鼠回肠中乙酰甲胆碱诱导的紧张反应拮抗作用的pA2值。结合亲和力是通过与豚鼠回肠,大鼠心脏和大脑以及m1或m3转染的中国仓鼠卵巢(CHO)细胞中与[3H] QNB结合的竞争来测量的。毒蕈碱激动剂在脑中的功效由对[3H] QNB或[3H] NMS和[3H]氧代remorine-M([3H] Oxo-M)的结合亲和力之比确定。九种毒蕈碱拮抗剂,包括阿扎普芬,没有明显区别毒蕈碱受体的亚型。在回肠,心脏,大脑以及m1或m3转染的CHO细胞中,与氮杂双胍(1)结合的受体的KI值在8.81 x 10(-11)和4.72 x 10(-10)M之间。α-和β-苯甲酸酯5和6的