3'-DEOXY-3'-HYDROXYMETHYL-ALDOPENTOPYRANOSYL NUCLEOSIDE SYNTHESIS .1.

被引:13
作者
DOBOSZEWSKI, B
BLATON, N
ROZENSKI, J
DEBRUYN, A
HERDEWIJN, P
机构
[1] CATHOLIC UNIV LEUVEN,REGA INST MED RES,MED CHEM LAB,B-3000 LOUVAIN,BELGIUM
[2] CATHOLIC UNIV LEUVEN,FAC PHARM,ANALYT CHEM LAB,B-3000 LOUVAIN,BELGIUM
[3] STATE UNIV GHENT,DEPT ORGAN CHEM,B-9000 GHENT,BELGIUM
关键词
D O I
10.1016/0040-4020(95)00211-P
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A straightforward synthesis of 3'-deoxy-3'-hydroxymethyl-aldopentopyranosyl nucleosides is described starting from beta-D-xylopyranosyl nucleosides. beta-D-xylopyranosyl thymine 17a,b,c and uracil 17d are converted into the 4'-benzoylated derivatives 18a,b and further into the 2',3'-enepyranosyl compounds 19b,c. A 3'-hydroxymethyl appendix has been introduced using a free-radical methodology to furnish 20a,b. Inversion of configuration of the 4'-position yielded the target nucleosides 22a,b. X-ray and H-1 NMR conformation analysis prove the equatorial orientation of the base moiety in the target compounds.
引用
收藏
页码:5381 / 5396
页数:16
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