申请人:Merck & Co., Inc.
公开号:US04435400A1
公开(公告)日:1984-03-06
The present invention relates to aminoalkenoate ester derivatives of 2-amino-5-chloro-3-nitropyrazine useful as sensitizers of hypoxic tumor cells to therapeutic radiation. It also relates to the process of preparing such compounds by reaction of 2-amino-5,6-dichloro-3-nitro-pyrazine with an amino or alkylamino substituted .alpha.,.beta.-unsaturated alkenoate ester. In addition the application relates to pharmaceutical compositions containing such compounds and to methods of treatment comprising administering such compounds to patients undergoing radiation treatment to enhance the effectiveness of such treatment by sensitizing hypoxic tumor cells to therapeutic radiation.
本发明涉及2-氨基-5-氯-3-硝基吡嗪的氨基烯酸酯衍生物,其可作为低氧肿瘤细胞对治疗放射线的敏感剂。还涉及通过将2-氨基-5,6-二氯-3-硝基吡嗪与氨基或烷基氨基取代的α,β-不饱和烯酸酯反应制备这种化合物的方法。此外,本申请还涉及含有这种化合物的制药组合物和治疗方法,包括将这种化合物用于接受放射治疗的患者,以增强这种治疗的有效性,通过使低氧肿瘤细胞对治疗放射线敏感。