THIOSUGARS. VIII.<sup>*</sup> PREPARATION OF NEW 4′-THIO-<scp>L</scp>-LYXO PYRIMIDINE NUCLEOSIDE ANALOGUES
作者:Jörn Wirsching、Jürgen Voss、Gunadi Adiwidjaja、Jan Balzarini、Erik De Clercq
DOI:10.1081/ncn-100105900
日期:2001.9.30
Reaction of 1-O-acetyl-2,3,5-tri-O-benzyl-4-thio-L-lyxofuranose with silylated pyrimidine bases and subsequent deprotection with boron tribromide led to 4′-thio-L-lyxo pyrimidine nucleosides. The 5-bromo-6-methyl derivative was prepared from methyl 2,3,5-tri-O-acetyl-4-thio-L-lyxofuranoside. Deacetylation was performed with sodium methoxide. The anomers were separated by HPLC and their configurations
1-O-乙酰基-2,3,5-tri-O-benzyl-4-thio-L-lyxofuranose 与甲硅烷基化嘧啶碱基反应,随后用三溴化硼脱保护,生成 4'-thio-L-lyxo 嘧啶核苷。5-溴-6-甲基衍生物由甲基 2,3,5-三-O-乙酰-4-硫代-L-lyxofuranoside 制备。用甲醇钠进行脱乙酰。端基异构体通过 HPLC 分离,并通过 NMR 光谱和 X 射线结构分析确定其构型。测试了核苷的生物活性。*第七部分:Wirsching, J.、Voss, J.、Adiwidjaja, G.、Giesler, A.、Kopf, J. Eur。J. 组织 化学 2001 年,印刷中。