5-Quinone derivatives of 2'-deoxyuridine 5'-phosphate: inhibition and inactivation of thymidylate synthase, antitumor cell, and antiviral studies
作者:Laman A. Al-Razzak、Douglas Schwepler、Charles J. Decedue、Jan Balzarini、Erik De Clercq、Mathias P. Mertes
DOI:10.1021/jm00385a026
日期:1987.2
substitution and palladium (0)-catalyzed biaryl coupling reactions have been employed in the synthesis of 5-substituted 2'-deoxyuridines. The former procedure was useful in the preparation of the 3,4-dimethyl-2,5-dimethoxyphenyl derivative 12a and the 3,4,6-trimethyl-2,5-dimethoxyphenyl derivative 12b. The latter reaction was efficient in the preparation of the 2-(3-methyl-1,4-dimethoxynaphthyl) derivative 14
光化学芳族取代和钯(0)催化的联芳基偶合反应都已用于合成5取代的2'-脱氧尿苷。前一种方法可用于制备3,4-二甲基-2,5-二甲氧基苯基衍生物12a和3,4,6-三甲基-2,5-二甲氧基苯基衍生物12b。后一反应在制备2-(3-甲基-1,4-二甲氧基萘基)衍生物14中是有效的。这些化合物及其核苷酸(20a-c)被转化为相应的醌核苷19a-c和核苷酸6-β。通过分别使用硝酸铈铵和氧化银(II)的氧化脱甲基反应,得到图8的产物。醌核苷19a的反应动力学和产物,具有硫代乙醇酸甲酯的b显示出在三取代衍生物19a中快速加到醌环上,与四取代醌19b和19c的氧化还原反应稍慢。所有六个核苷酸对干酪乳杆菌的标题酶均具有高亲和力,Ki值在0.59至3.6 microM之间。最有效的化合物是二甲基醌6和萘醌8。醌对L1210酶的抑制常数更高。二甲基醌核苷酸6对干酪乳杆菌显示出时间依赖性的失活(运动= 0.015