目的寻找具有内皮依赖性舒张血管活性的新结构胺基膦酸酯类化合物。方法运用一种新型的类M ann ich反应,以生物电子等排体原理设计合成了一系列α-胺基苄基膦酸酯类化合物,并运用离体大鼠血管环和离体豚鼠回肠收缩实验观察其舒张血管活...目的寻找具有内皮依赖性舒张血管活性的新结构胺基膦酸酯类化合物。方法运用一种新型的类M ann ich反应,以生物电子等排体原理设计合成了一系列α-胺基苄基膦酸酯类化合物,并运用离体大鼠血管环和离体豚鼠回肠收缩实验观察其舒张血管活性及其对M受体的激动作用。结果共合成了7个新的α-胺基苄基膦酸酯类目标化合物,其结构经IR,1H NMR和元素分析确定。初步离体血管环实验和离体豚鼠回肠收缩实验结果显示,化合物2a,2b和2 c有一定的舒张血管活性且不激活平滑肌M受体。结论在浓度为1×10-5mol.L-1时,化合物2b和2 c有较强的舒张血管活性,其舒张率分别为(67±21)%,(82±18)%,而且不激动M受体,其中,化合物2b有内皮依赖性的舒张血管反应。展开更多
Aim To design a practical synthetic route of anisodine. Methods Starting from3α-hydroxy-6β-acetyltropine, anisodine was synthesized in 11 steps. Result Anisodine wasobtainded with an overall yield of 2.6 % . Conclus...Aim To design a practical synthetic route of anisodine. Methods Starting from3α-hydroxy-6β-acetyltropine, anisodine was synthesized in 11 steps. Result Anisodine wasobtainded with an overall yield of 2.6 % . Conclusion Total synthetic route of anisodine wasachieved which may afford a possible route for commercial preparation of anisodine.展开更多
文摘Aim To design a practical synthetic route of anisodine. Methods Starting from3α-hydroxy-6β-acetyltropine, anisodine was synthesized in 11 steps. Result Anisodine wasobtainded with an overall yield of 2.6 % . Conclusion Total synthetic route of anisodine wasachieved which may afford a possible route for commercial preparation of anisodine.
