High purity 2-nitroimidazole derivatives having excellent radiosensitivity and high safety and useful as a drug to be used along with radiotherapy of various cancers can be prepared at a high yield from inexpensive diester of tartaric acid according to the following reaction formua, ##STR1## wherein R.sup.1 and R.sup.2 may be the same or different and each individually represents an aliphatic group or an aromatic group, and X represents a halogen atom.
具有优异放射敏感性和高安全性的高纯度
2-硝基咪唑衍
生物,可作为与各种癌症放射疗法一起使用的药物,可以从廉价的
酒石酸二酯高产率地制备,反应方程式如下:##STR1## 其中R.sup.1和R.sup.2可以相同也可以不同,每个分别代表一个脂肪基或芳香基,X代表一个卤素原子。