2-(2-iodoethoxy)tetrahydropyran (which was generated from its bromide) followed by cleavage of the tetrahydropyran group with Dowex resin. Arachidonyl carbamates 2a-2c were obtained through the coupling of arachidonyl alcohol with the appropriate isocyanates. Norarachidonyl carbamates 3a-3c and ureas 4a-4h were obtained through the coupling of the norarachidonyl isocyanate (generated from arachidonic acid using diphenyl
为了检查将an南酰胺(5,AN)的酰胺键改变为
水解度较低的部分的效果,从市售的花生四烯醇或
花生四烯酸合成类似物1a-1l,2a-2c,3a-3c和4a-4h,然后测试其药理活性。
花生四烯酸基醚1a-1k是通过将
花生四烯酸甲磺酸酯(6)(由花生四烯醇的
甲磺酸化反应生成)与适当的醇在
氢氧化钾中偶联而获得的。通过花生四烯醇与2-(2-
碘乙氧基)
四氢吡喃(由其
溴化物生成)的相转移偶联,然后用Dowex
树脂裂解
四氢吡喃基,获得花生四烯基醚11。通过将花生四烯醇与适当的
异氰酸酯偶联获得
花生四烯酸氨基甲酸酯2a-2c。降
花生四烯酸基
氨基甲酸酯3a-3c和
脲4a-4h分别是通过将
花生四烯酸异氰酸酯(通过使用
叠氮磷酸二苯酯和
三乙胺在加热条件下由
花生四烯酸生成)与适当的醇和胺偶联而获得的。AN类似物1-3与CB1受体的结合亲和力很差,在最高30 mg / kg的剂量下无法产生明显的药理作用。在CB2结合测定中