5-Fluorouracil derivatives. X. Synthesis and antitumor activities of .ALPHA.-alkoxyalkyl-5-fluorouracils.
作者:SHOICHIRO OZAKI、YUTAKA WATANABE、TOMONORI HOSHIKO、TOSHIO NAGASE、TOMIO OGASAWARA、HIROYUKI FURUKAWA、ATSUHIKO UEMURA、KATSUTOSHI ISHIKAWA、HARUKI MORI、AKIO HOSHI、MASAAKI IIGO、REIKO TOKUZEN
DOI:10.1248/cpb.34.150
日期:——
With the aim of diminishing the toxicity of 5-fluorouracil (1) and obtaining biologically active derivatives of 1 suitable for oral administration, α-alkoxyalkyl groups were introduced at the 1-, 3-and 1, 3-positions of 1. Alkoxyalkylation can be effected by four methods : (i) reaction of 1-alkoxyalkyl chloride (2) with 1, (ii) reaction of acetal with 2, 4-bis (trimethylsiloxy)-5-fluoropy-rimidine, (iii) addition reaction of α-unsaturated ether with 1, (iv) aminolysis of 1-alkylthio-carbonyl-3-(1-alkoxyalkyl)-5-fluorouracil. The toxicity of the products was less than that of 1, and some of these compounds showed moderate antitumor activity against L-1210 leukemia.
为了降低 5-氟尿嘧啶(1)的毒性并获得适合口服的具有生物活性的 1-氟尿嘧啶衍生物,人们在 1-氟尿嘧啶的 1、3 和 1、3-位上引入了 α-烷氧基烷基。烷氧基烷基化可通过四种方法实现:(i) 1-烷氧基烷基氯(2)与 1 反应;(ii) 缩醛与 2,4-双(三甲基硅氧基)-5-氟嘧啶反应;(iii) α-不饱和醚与 1 的加成反应;(iv) 1-烷硫基-羰基-3-(1-烷氧基烷基)-5-氟尿嘧啶的氨解反应。这些产物的毒性小于 1,其中一些化合物对 L-1210 白血病具有中等程度的抗肿瘤活性。