Alkoxy( phenylthio) O (, , tri O acetyl β D xylopyranos yl) fluoro pyrimidine(a～e)were obtained by the Koenigs Knorr reaction of with the silver salts(a～e) of (a～e)in xylene.

与(a～e) 的银盐(a ～e) 在二甲苯中发生KoenigsKnorr 反应,合成了烷氧基(苯硫基)O( , ,三O乙酰基βD木吡喃糖基)氟嘧啶(a～e) .