Improved and large-scale synthesis of certain glycosyl cyanides. Synthesis of 2,5-anhydro-5-thio-d-allononitrile
作者:Ganesh D. Kini、Charles R. Petrie、William J. Hennen、N.Kent Dalley、Bruce E. Wilson、Roland K. Robins
DOI:10.1016/s0008-6215(00)90007-7
日期:1987.1
The first synthesis of 2,5-anhydro-5-thio-D-allononitrile starting with L-lyxose, via a trifluoromethanesulfonic ester intermediate, has been accomplished. Methods have been developed to achieve a large-scale synthesis of 3,4,5,7-tetra-O-acetyl-2,6-anhydro-D-glycero-D-talo-heptononitrile (5). An improved procedure has been developed to synthesize 2,5-anhydro-3,4,6-tri-O-benzoyl-D-gulononitrile (9)
已经通过三氟甲磺酸酯中间体完成了以L-糖为原料的2,5-脱水5-硫代-D-丙腈的首次合成。已经开发了实现3,4,5,7-四-O-乙酰基-2,6-脱水-D-甘油-D-talo-庚腈的大规模合成方法(5)。已经开发出一种改进的方法来合成2,5-脱水-3,4,6-三-O-苯甲酰基-D-古洛腈(9)。通过X射线晶体学分析证实了5和9,2,5-脱水-3,4,6-三-O-苯甲酰基-D-古洛诺硫酰胺的硫代酰胺衍生物的结构。