Regioselective synthesis and bioactivity of new 5-amino-6-arylamino-pyrazolo[3,4-<i>d</i>]-pyrimidin-4(5<i>H</i>)-one derivatives
作者:Hong-Qing Wang、Wei-Ping Zhou、Yu-Yuan Wang、Can-Rong Lin、Zhao-Jie Liu
DOI:10.1002/jhet.26
日期:2009.3
A novel approach to regioselective synthesis of new 5-amino-6-arylamino-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one derivatives via a tandem aza-wittig and annulation reaction of iminophosphorance , aromatic isocyanates and hydrazine in 69.6–94.7% isolated yields is reported. The compound reacted with triethyl orthoformate to give compound in good yield (65.8–82.8%). Their structure was clearly confirmed
一种新的5-氨基-6-芳基氨基-1 H-吡唑并[3,4- d ]嘧啶-4(5 H)-一的区域选择性合成的新方法衍生物经由串联氮杂维悌希和环反应iminophosphorance的,芳族异氰酸酯和肼的分离产率为69.6–94.7%。化合物 与原甲酸三乙酯反应生成化合物 产量高(65.8–82.8%)。光谱数据(IR,1 H NMR,MS,元素分析)清楚地确认了其结构,初步生物测定结果表明该化合物 和 对灰葡萄孢和菌核盘菌具有较高的抗真菌活性,浓度为50 mg / L时,对灰葡萄孢,稻瘟病菌和核盘菌的抑制率分别为100、96.4和90.2%。化合物的抗真菌活性 通常高于复合材料的 。J.杂环化学,(2009)。