An Efficient Procedure for the 1-Alkylation of 2-Nitroimidazoles and the Synthesis of a Probe for Hypoxia in Solid Tumours
作者:Anthony Long、John Parrick、Richard J. Hodgkiss
DOI:10.1055/s-1991-26552
日期:——
The N-alkylation of 2-nitroimidazole through its 'naked' anion, formed from its alkali metal salts in the presence of crown ethers and in homogeneous solution, is shown to be a useful preparative procedure. The reactions of α,Ï-dihaloalkanes can be controlled to afford either the mono- or diheteroarylalkane. The procedure has been used to alkylate theophylline and to prepare a compound of use as a probe to identify, locate and quantify hypoxia in sections from solid tumours.
裸露阴离子形式的2-硝基咪唑的N-烷基化反应,通过其在冠醚存在下由碱金属盐形成的均相溶液中进行,已被证明是一种有用的制备方法。α,ω-二卤代烷的反应可以被调控,以获得单或双杂芳基烷。该方法已被用于碱基化茶碱,并制备了一种可作为探针的化合物,用于在固体肿瘤组织切片中鉴定、定位和量化缺氧区域。