以雄烯二酮为原料,制得16E-苯亚甲基甾体衍生物(1);1和3-氨基吡唑反应合成了D-环吡唑并[1,5-a]嘧啶基修饰的雄烯二酮类衍生物,收率......

On the basis of the Zaleplon structure, novel pyrazolo[1,5-a]pyrimidines were designed and prepared for studies on their......