Preparation and Properties of (R)-(−)-1-Azabicyclo[2.2.2]Oct-3-yl-(R)-(+)-α-Hydroxy-α-(4-[125l]Iodophenyl)-α-Phenyl Acetate and (R)-(−)-1-Azabicyclo[2.2.2]Oct-3-Yl-(S)-(−)-α-hydroxy-α-(4-[125l]iodophenyl)-α-phenyl acetate as potential radiopharmaceuticals
作者:Victor I. Cohien、Waclaw J. Rzeszotarski、Raymond E. Gibson、Linda H. Fan、Richard C. Reba
DOI:10.1002/jps.2600781011
日期:1989.10
alpha-phenyl acetate. After hydrogenation, the (R,R)- and (R,S)-amines were converted to the respective triazene derivatives. The triazene derivatives reacted with sodium [125I]iodide to give (R)-(-)-1-azabicyclo[2.2.2]oct-3-yl-(R)-(+)- alpha-hydroxy-alpha-(4-[125I]iodophenyl)-alpha-phenyl acetate and (R)-(-)-1-azabicyclo[2.2.2]oct-3-yl-(S)-(-)-alpha-hydroxy- alpha-(4-[125I]iodophenyl)-alpha-phenyl
合成了rac-4-硝基苯甲酸,并用奎尼丁和奎宁拆分,得到相应的(R)-和(S)-盐。将拆分的非对映异构体盐转化为(R)-和(S)-4-硝基苯甲酸,随后酯化得到其相应的乙酯。与(R)-(-)-3-奎宁环醇酯交换反应得到(R)-(-)-1-氮杂双环[2.2.2] oct-3-yl-(R)-(+)-α-羟基-α- (4-硝基苯基)-α-苯基乙酸酯和(R)-(-)-1-氮杂双环[2.2.2] oct-3-yl-(S)-(-)-α-羟基-α-(4-硝基苯基)-α-苯基乙酸酯 氢化后,将(R,R)-和(R,S)-胺转化为相应的三氮烯衍生物。三嗪衍生物与[125I]碘化钠反应,得到(R)-(-)-1-氮杂双环[2.2.2] oct-3-yl-(R)-(+)-α-羟基-α-(4 -[125I]碘苯基)-α-乙酸苯酯和(R)-(-)-1-氮杂双环[2.2。2]辛-3-基-(S)-(-)-α-羟基-α-(4-