S-glycosides in medicinal chemistry: Novel synthesis of cyanoethylene thioglycosides and their pyrazole derivatives
作者:Galal Elgemeie、Nahed Fathy、Wafaa Zaghary、Ayman Farag
DOI:10.1080/15257770.2016.1257807
日期:2017.3.4
2-cyanoethylene-1-thiolate salt with 2,3,4,6-tetra-O-acetyl-α-D-gluco- and galactopyranosyl bromides affords a new class of cyanoethylene thioglycosides. The conversion to the corresponding 5-aminopyrazoles confirms the E-configuration of these cyanoethylene thioglycosides.
摘要 2-氰基乙烯-1-硫醇钠盐与 2,3,4,6-四-O-乙酰基-α-D-葡糖-和吡喃半乳糖基溴化物的一锅反应提供了一类新的氰基乙烯硫糖苷。转化为相应的 5-氨基吡唑证实了这些氰基乙烯硫糖苷的 E 构型。