Imidazoles from nitroallylic acetates and α-bromonitroalkenes with amidines: synthesis and trypanocidal activity studies
作者:Elumalai Gopi、Tarun Kumar、Rubem F. S. Menna-Barreto、Wagner O. Valença、Eufrânio N. da Silva Júnior、Irishi N. N. Namboothiri
DOI:10.1039/c5ob01444a
日期:——
Cascade reactions of amidines with nitroallylic acetates and α-bromonitroalkenes provide potentially bioactive imidazoles in good to excellent yields in most cases. While 2,4-disubstituted imidazol-5-yl acetates are formed in the first case, 2,4-disubstituted imidazoles, bearing no substituent at position 5, are the products in the second case. These two series of imidazoles, viz. 2,4,5-trisubstituted
Synthesis of imidazoles via cascade reaction of nitroallylic acetates with amidines and studies on their trypanocidal activity
作者:Tarun Kumar、Deepti Verma、Rubem F. S. Menna-Barreto、Wagner O. Valença、Eufrânio N. da Silva Júnior、Irishi N. N. Namboothiri
DOI:10.1039/c4ob02561j
日期:——
aza-SN2′-intramolecular aza-Michael addition involving a variety of Morita–Baylis–Hillman acetates of nitroalkenes and amidines in the presence of DABCO at room temperature. The synthetic and biological utility of the products has been demonstrated. In particular, some of the imidazoles exhibited potent activity against T. cruzi, the etiological agent of Chagas disease.
高取代咪唑的一锅两步合成法首次成功地通过级联分子间氮杂-S N 2'-分子间氮杂-迈克尔加成反应进行,涉及各种森田-贝利斯-希尔曼在室温下,在DABCO存在下,硝基烯烃和alk的乙酸盐。产品的合成和生物学用途已得到证明。特别地,一些咪唑显示出对南美锥虫病的致病性克鲁格氏菌的有效活性。