New analogues of fosfomycin—synthesis of diethyl (1R,2R)- and (1S,2R)-1,2-epoxy-3-hydroxypropylphosphonates
作者:Andrzej E. Wróblewski、Irena I. Bąk-Sypień
DOI:10.1016/j.tetasy.2007.02.006
日期:2007.3
The trans-configured fosfomycin analogue, diethyl (1R,2R)-1,2-epoxy-3-hydroxypropylphosphonate, was synthesised via the intramolecular Williamson reaction from 3-O-protected (trityl or TBDMS) or even unprotected diethyl (1S,2R)-2,3-dihydroxy-1-mesyloxypropylphosphonate, which was obtained from the known diethyl (1S,2R)-2,3-O-cyclohexylidene-1,2,3-trihydroxypropylphosphonate. On the other hand, the
的反式-型磷霉素类似物,二(1 - [R,2 - [R)-1,2-环氧-3- hydroxypropylphosphonate,经由从分子内Williamson反应合成3- ø -保护(三苯甲基或TBDMS)或甚至未保护的二(1-小号,2 - [R)-2,3-二羟基-1- mesyloxypropylphosphonate,这是从已知的二乙基(1得到小号,2 - [R)-2,3- Ô亚环己基-1,2,3- trihydroxypropylphosphonate。另一方面,顺式类似物(1 S,2 R)-1,2-环氧-3-羟丙基膦酸二乙酯只能由二乙基(1 R,2 R)-2-羟基-1-甲甲氧基-3-三苯甲氧基丙基膦酸酯。