as a lead compound in an effort to discover antiproliferative agents based on oxindolylidene derivatives of imidazothiazolotriazine. A broadened structural optimization using an earlier developed efficient synthetic route provided 17 new oxindolylidene imidazothiazolotriazines which displayed evident antiproliferative activity in cellular assays (GI50 0.60–8.37 μM). The most potent compounds 5d–s (GI50
1,3-Diethyl-6-oxindolylidenetetrahydroimidazo[4,5- e ]thiazolo[3,2 - b ]-1,2,4-triazine-2,7-dione 在氮原子上具有 2-丙基取代基oxindole 片段 ( 1d ) 之前被确定为先导化合物,以努力发现基于
咪唑噻唑并三嗪的 oxindolylidene 衍
生物的抗增殖剂。使用较早开发的有效合成路线进行了扩大的结构优化,提供了 17 种新的 oxindolylidene
咪唑噻唑并三嗪,它们在细胞测定中显示出明显的抗增殖活性 (GI 50 0.60–8.37 μM)。最有效的化合物5d–s (GI 50 < 4.5 μM) 含有 1,3-
二乙基四氢
咪唑[4,5- e]
噻唑并[2,3 - c ]-
1,2,4-三嗪核心和羟
吲哚片段氮原子上的烷基取代基。在羟
吲哚片段的氮原子上具有戊基取代基的化合物5m具