Synthesis and Structure-Activity Relationships of Novel 2',2'-Difluoro Analogues of Docetaxel.
作者:Kouichi UOTO、Satoru OHSUKI、Haruhiro TAKENOSHITA、Takashi ISHIYAMA、Shin IIMURA、Yasuhide HIROTA、Ikuo MITSUI、Hirofumi TERASAWA、Tsunehiko SOGA
DOI:10.1248/cpb.45.1793
日期:——
2'-difluoro derivatives of docetaxel and evaluated their cytotoxicity against mouse leukemia and human tumor cell lines and their microtubule disassembly-inhibitory activity. These analogues were prepared by esterification of protected 10-deacetylbaccatin III (21) with appropriate alpha, alpha-difluorinated carboxylic acids (Charts 1 and 2). Among these 2',2'-difluorodocetaxel derivatives, 2',2'-difluorodocetaxel
为了研究多西他赛C-13侧链上的2'-羟基在抗肿瘤活性中的作用,我们制备了多西他赛的几种2',2'-二氟衍生物,并评估了其对小鼠白血病和人肿瘤细胞系的细胞毒性和它们的微管分解抑制活性。这些类似物是通过将保护的10-脱乙酰浆果赤霉素III(21)与适当的α,α-二氟代羧酸酯化制备的(图1和2)。在这些2',2'-二氟多西他赛衍生物中,就细胞毒性而言,2',2'-二氟多西他赛(23b)的活性是2'-氟多西他赛(29a)的约3-10倍。另外,3'-(2-呋喃基)(23h)和3'-(2-吡咯基)(23p)类似物显示出与多西他赛(2)相当或更高的活性。