Glycosylation of 2-Thiouracil Derivatives. A Synthetic Approach to 3-Glycosyl-2, 4-dioxypyrimidines
作者:A. I. Khodair、E. E. Ibrahim、E. S. H. El Ashry
DOI:10.1080/07328319708001360
日期:1997.4
Reaction of 6-aryl-5-cyano-2-thiouracils 2a-d with glycosyl halides 4a,b under alkaline conditions gave the respective bisglycosylated derivatives 5a-h. However, their deacetylation with ammonia in methanol caused a cleavage of the S-glycosyl residue and gave the N-3 glycosylated analogues 6a-h.