Reaction of 5-fluorouracil (I) with sodium chloroacetate in the presence of sodium hydride afforded a mixture of 5-fluorouracil-1-acetic acid (II) and 5-fluorouracil-3-acetic acid (III). p-Nitrophenyl 5-fluorouracil-1-acetate (IV) reacted with amines in methanol or dimethylformamide to give N-substituted 5-fluorouracil-1-acetamides V. The following amides were prepared: diethylamide Vc, n-hexylamide Vd, cyclohexylamide Ve, adamantylamide Vf, anilide Vg, benzylamide Vh, benzhydrylamide Vi, pyrrolidide Vj, piperidide Vk, morpholide Vl, 3-dimethylaminopropylamide Vm, 3-aminopropylamide Vn, 2-hydroxyethylamide Vo, bis(2-hydroxyethyl)amide Vp and tris(hydroxymethyl)methylamide Vq. Compounds Vc-Vq do not inhibit the growth of Escherichia coli in concentrations up to 1 mg/ml. Compounds Vf and Vh have a weak, compound Vq a significant, inhibition effect on the growth of L-1210 mouse leukemic cells in vitro in concentrations 1.5 . 10-5 mol l-1.
5-氟尿嘧啶(I)在氢氧化钠存在下与氯乙酸钠反应,生成5-氟尿嘧啶-1-乙酸(II)和5-氟尿嘧啶-3-乙酸(III)的混合物。对硝基苯基5-氟尿嘧啶-1-乙酸酯(IV)在甲醇或二甲基甲酰胺中与胺反应,生成N-取代的5-氟尿嘧啶-1-乙酰胺(V)。制备了以下酰胺:双乙酰胺(Vc)、正己基酰胺(Vd)、环己基酰胺(Ve)、金刚烷基酰胺(Vf)、苯甲酰胺(Vg)、苄基酰胺(Vh)、苯甲基酰胺(Vi)、吡咯烷酰胺(Vj)、哌啶酰胺(Vk)、吗啉酰胺(Vl)、3-二甲氨基丙酰胺(Vm)、3-氨基丙酰胺(Vn)、2-羟乙酰胺(Vo)、双(2-羟乙基)酰胺(Vp)和三(羟甲基)甲基酰胺(Vq)。化合物Vc-Vq在浓度高达1毫克/毫升时不抑制大肠杆菌的生长。化合物Vf和Vh对L-1210小鼠白血病细胞的生长有微弱的抑制作用,化合物Vq在浓度为1.5×10-5摩尔/升时对体外细胞生长有显著的抑制作用。