Synthesis and in vitro cytotoxicity of acetylated 3-fluoro, 4-fluoro and 3,4-difluoro analogs of D-glucosamine and D-galactosamine
作者:Štěpán Horník、Lucie Červenková Šťastná、Petra Cuřínová、Jan Sýkora、Kateřina Káňová、Roman Hrstka、Ivana Císařová、Martin Dračínský、Jindřich Karban
DOI:10.3762/bjoc.12.75
日期:——
The 1-O-deacetylated 3-fluoro and 4-fluoro analogs of acetylated D-galactosamine inhibited proliferation of the human prostate cancer cell line PC-3 more than cisplatin and 5-fluorouracil (IC50 28 +/- 3 muM and 54 +/- 5 muM, respectively). CONCLUSION: A complete series of acetylated 3-fluoro, 4-fluoro and 3,4-difluoro analogs of D-glucosamine and D-galactosamine is now accessible by 1,6-anhydrohexopyranose
背景:D-氨基葡萄糖和D-半乳糖胺的衍生物代表细胞表面聚糖成分的重要家族,其氟化类似物被用作复杂聚糖生物合成的代谢抑制剂或用作蛋白质-碳水化合物相互作用研究的探针。这项工作的重点是通过1,6-合成D-葡萄糖胺和D-半乳糖胺的乙酰化3-deoxy-3-fluoro,4-deoxy-4-fluoro和3,4-dideoxy-3,4-difluoro类似物。脱水己糖化学。此外,确定了目标化合物对所选癌细胞的细胞毒性。结果:在C-3处引入氟是通过1,6-脱水-2-叠氮基-2-脱氧-4-O-苄基-β-D-吡喃葡萄糖或它的4-氟类似物与DAST反应而实现的。讨论了该反应中构型的保留。通过1,6:2,3-双脱水-β-D-塔拉吡喃糖与DAST的反应或通过1,6:3,4-双脱水-2-叠氮基-β-D的氟解反应来安装C-4处的氟。 -半乳糖吡喃糖与KHF2。氨基被引入并在合成中被掩盖为叠氮化物。乙酰化D-半乳糖