SYNTHESIS OF 2-(BETA-D-RIBOFURANOSYL)THIAZOLE-4-CARBOXAMIDE 5'-PHOSPHATE ISOSTERES

被引:9
|
作者
ANDRES, JI [1 ]
GARCIALOPEZ, T [1 ]
DELASHERAS, FG [1 ]
MENDEZCASTRILLON, PP [1 ]
机构
[1] INST QUIM MED, JUAN CIERVA 3, E-28006 MADRID, SPAIN
来源
关键词
D O I
10.1080/07328318608068683
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The syntheses of 5''-O-sulfamoyl and 5''-O-carbamoyl tiazofurin (9 and 12) are described. One pot reaction of 2'',3''-O-isopropylidene-tiazofurin (7) with hexabutyldistannoxane and sulfamoyl chloride gave the corresponding 5''-O-sulfamoyl ester, which was deprotected to yield 9. Compound 7 reacted with phenyl chloroformate to give the 5''-O-carbophenoxy derivative which on treatment with ammonium hydroxide followed by deisopropylidenation afforded 12. Improvements on the synthetic route to the starting tiazofurin are also reported.
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页码:423 / 429
页数:7
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