作者:Nitya G. Kundu、Biswajit Das、C. Paul Spears、Anjali Majumdar、San Ihn Kang
DOI:10.1021/jm00169a026
日期:1990.7
corresponding 5-(2-acylethynyl)uracils (11-14). The 5-(2-acylethynyl)uracils were found to be active against Ehrlich ascites carcinoma (EAC) cells in vivo, the most active compounds being 5-(2-benzoylethynyl)uracil (11) and 5-(2-p-toluoylethynyl)uracil (12). The T/C values of 281 and 300 were obtained for compounds 11 and 12, respectively, in the case of mice bearing EAC cells. The 5-(2-acylethynyl)uracils
通过用酰氯处理,由2,4-二甲氧基-5- [2-(三甲基甲硅烷基)乙炔基]嘧啶(2)以优异的产率合成5-(2-酰基乙炔基)-2,4-二甲氧基嘧啶(3-6)。无水氯化铝的存在。用氯三甲基硅烷和碘化钠的乙腈溶液将化合物3-6封端,得到相应的5-[(2-酰基-1-碘)乙烯基]尿嘧啶(7-10),将其在二恶烷中用氢氧化钾处理后得到相应的5- [ (2-酰基乙炔基)尿嘧啶(11-14)。发现5-(2-酰基乙炔基)尿嘧啶在体内对艾氏腹水癌(EAC)细胞有活性,最活跃的化合物是5-(2-苯甲酰基乙炔基)尿嘧啶(11)和5-(2-对甲苯基乙炔基)尿嘧啶(12)。在带有EAC细胞的小鼠的情况下,分别针对化合物11和12获得281和300的T / C值。5-(2-酰基乙炔基)尿嘧啶还显示出针对CCRF-CEM和L1210 / 0肿瘤细胞系的体外活性。铅化合物5-(2-对甲苯基乙炔基)尿嘧啶可有效抑制胸苷酸合成酶。