A facile method for the synthesis of steroidal and nonsteroidal 5-methyl pyrazolo[1,5-a]pyrimidines
作者:Partha Pratim Kaishap、Swagata Baruah、Kommuri Shekarrao、Sanjib Gogoi、Romesh C. Boruah
DOI:10.1016/j.tetlet.2014.04.011
日期:2014.5
The steroidal and nonsteroidal 5-methyl pyrazolo[1,5-a]pyrimidines were synthesized by the reaction of steroidal/nonsteroidal α,β-unsaturated ketones and 3-amino-1H-pyrazoles/5-amino-1H-pyrazoles in the presence of KOtBu in ethanol under reflux condition.
甾体和非甾体的5-甲基吡唑并[1,5- a ]嘧啶是通过甾体/非甾体α,β-不饱和酮与3-氨基-1 H-吡唑/ 5-氨基-1 H-吡唑的反应合成的。回流条件下乙醇中存在KO t Bu。