Synthesis of 3-carbamoylecgonine methyl ester analogs as inhibitors of cocaine binding and dopamine uptake
作者:Richard H. Kline、Jeremy Wright、Amy J. Eshleman、Kristine M. Fox、Mohyee E. Eldefrawi
DOI:10.1021/jm00106a035
日期:1991.2
(-)-stereoisomers from (-)-ecgonine in good yield (56% overall). These cocaine derivatives were assessed for their ability to inhibit [3H]cocaine binding to rat striatal tissue and to inhibit [3H]dopamine uptake into synaptosomes prepared from the same tissue. The most potent of the analogues was (1R-2-exo-3-exo)-2-(carbomethoxy)-8-methyl-8-azabicyclo[3.2.1]octyl 3-N-(3'-nitrophenyl)carbamate. IC50 values
合成了五个(1R-2-exo-3-exo)-3-(N-苯基氨基甲酰基)芽子碱甲酯类似物,并通过1H和13C NMR,IR和热喷涂MS进行了表征。该化合物分两步或三步以高收率(-56%)从(-)-芽子碱合成为(-)-立体异构体。评估这些可卡因衍生物抑制[3H]可卡因与大鼠纹状体组织结合的能力,以及抑制[3H]多巴胺摄入由同一组织制备的突触小体的能力。最有效的类似物是3-N-(3'-硝基苯基)氨基甲酸酯(1R-2-exo-3-exo)-2-(羰甲氧基)-8-甲基-8-氮杂双环[3.2.1]辛基。抑制可卡因结合和多巴胺摄取的IC50值分别为37和178 nM。氨基衍生物的活性比硝基和(1R-2-exo-3-exo)-2-(羰甲氧基)-8-甲基-8-氮杂双环[3.2.1]辛基3-N-(4'