Affinity and selectivity of the optical isomers of 3-quinuclidinyl benzilate and related muscarinic antagonists
作者:W. Janusz Rzeszotarski、Daniel W. McPherson、John W. Ferkany、William J. Kinnier、Lalita Noronha-Blob、Alicja Kirkien-Rzeszotarski
DOI:10.1021/jm00402a035
日期:1988.7
All of the optical isomers of the muscarinic antagonists 3-(1-azabicyclo[2.2.2]octyl) alpha-hydroxy-alpha,alpha-diphenylacetate (3-quinuclidinyl benzilate, QNB, 1) 3-(1-azabicyclo[2.2.2]octyl) xanthene-9-carboxylate (3-quinuclidinyl xanthene-9-carboxylate, QNX, 2), and 3-(1-azabicyclo[2.2.2]ocytl) alpha-hydroxy-alpha-phenylpropionate (3-quinuclidinyl atrolactate, QNA, 3) were prepared and studied in
毒蕈碱拮抗剂3-(1-氮杂双环[2.2.2]辛基)α-羟基-α,α-二苯乙酸酯(3-喹啉基苯甲酸根,QNB,1)3-(1-氮杂双环[2.2。]的所有旋光异构体。 2]辛基)氧杂蒽9-羧酸盐(3-奎宁环烯基氧杂蒽9-羧酸盐,QNX,2)和3-(1-氮杂双环[2.2.2] ocytl)α-羟基-α-苯基丙酸酯(3-奎宁环戊基丙酸酯) ,QNA,3)被制备并在结合和功能测定中研究。在所有情况下,(R)-1-氮杂双环[2.2.2] octan-3-ol(3-quinuclidinol)的酯对毒蕈碱乙酰胆碱受体(M-AChRs)的M1和M2亚群具有更大的亲和力同行。QNB(1),QNX(2)和QNA(3)的对映异构体(其中毒蕈碱拮抗剂的醇部分具有S绝对立体化学)对M1-AChR更具选择性。该选择性是通过性质(在QNA的情况下)是酸部分的手性来调节的。该系列中最有效的异构体是(R)-QNB。在QN