A novel multicomponent microwave-assisted synthesis of 5-aza-adenines
作者:Anton V. Dolzhenko、Svetlana A. Kalinina、Dmitrii V. Kalinin
DOI:10.1039/c3ra41932k
日期:——
A novel multicomponent strategy for the efficient synthesis of 5-aza-adenines was developed. 5-Aza-adenines were prepared in a one-pot fashion from 5-amino-1,2,4-triazoles, cyanamide and triethyl orthoformate under microwave irradiation. The operational simplicity, efficiency and accessibility of this method make it highly attractive for the generation of bioactive compound libraries.
Practical synthesis of regioisomeric 5(7)-amino-6,7(4,5)-dihydro[1,2,4]triazolo[1,5-a][1,3,5]triazines
作者:Anton V. Dolzhenko、Anna V. Dolzhenko、Wai-Keung Chui
DOI:10.1016/j.tet.2007.10.046
日期:2007.12
A convenient and efficient synthesis of new 5-azapurine derivatives was developed. The regioisomeric 5-amino-6,7-dihydro- and 7-amino-4,5-dihydro[1,2,4]triazolo[1,5-a][1,3,5]triazines were prepared in 3–4 steps from benzhydrazide via complementary and regiospecific routes as a part of our lead finding program. The molecular structures and tautomeric preferences of the compounds obtained were investigated
开发了一种方便而有效的新的5-氮杂嘌呤衍生物的合成方法。区域异构的5-氨基-6,7-二氢和7-氨基-4,5-二氢[1,2,4]三唑[1,5- a ] [1,3,5]三嗪在3-作为领先发现计划的一部分,从苯甲酰肼经过互补和区域专一性路线走4步。使用NMR光谱数据和X射线晶体学研究获得的化合物的分子结构和互变异构偏好。