Synthesis of 5-Alkynyl Isoxazolidinyl Nucleosides

被引:22
作者
Romeo, Roberto [1 ]
Giofre, Salvatore Vincenzo [1 ]
Iaria, Daniela [1 ]
Sciortino, Maria Teresa [2 ]
Ronsisvalle, Simone [3 ]
Chiacchio, Maria Assunta [3 ]
Scala, Angela [1 ]
机构
[1] Univ Messina, Dipartimento Farmacochim, I-98168 Messina, Italy
[2] Univ Messina, Dipartimento Sci Microbiol Genet & Mol, I-98168 Messina, Italy
[3] Univ Catania, Dipartimento Sci Farmaceut, I-95125 Catania, Italy
关键词
Nucleosides; Cycloaddition; Cross-coupling; Antitumor agents; ANALOGS; ANTIMETABOLITES; CYCLOADDITIONS; PSEUDOURIDINE; CYTOTOXICITY; NITRONE; DNA;
D O I
10.1002/ejoc.201100767
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Starting with 5-iodo N,O-nucleosides, prepared by 1,3-dipolar cycloaddition of nitrones with vinyliodouracil, or vinyl acetate followed by coupling with silylated iodouracil, a series of 5-alkynyl N,O-nucleosides were synthesized via a palladium-catalyzed (Sonogashira) coupling reaction. The cytotoxic activity of modified nucleosides against HEp-2 cell lines was determined in vitro. The 5-ethynyl N,O-nucleoside, the only compound in the series containing a terminal acetylene unit, was found to be the most active compound.
引用
收藏
页码:5690 / 5695
页数:6
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