Augmentation of steroidal β-formylenamide with pyrazolo and benzimidazo moieties: A tandem approach to highly fluorescent steroidal heterocycles
作者:Geetmani Singh Nongthombam、Romesh Chandra Boruah
DOI:10.1016/j.tetlet.2021.152893
日期:2021.3
A facile synthesis of pyrazolo[1,5-a]pyrimidine and benzimidazo[1,2-a]pyrimidine annulated steroids is described from the novel reaction of β-formyl enamides with amino pyrazoles, indazoles and benzimidazoles. Several of the products exhibited fluorescence properties with high quantum yields.
从β-甲酰胺基与
氨基
吡唑,
吲唑和
苯并咪唑的新型反应中,可轻松合成
吡唑并[1,5- a ]
嘧啶和
苯并咪唑并[1,2- a ]
嘧啶环化的类
固醇。几种产品显示出具有高量子产率的荧光性质。