C-nucleoside analog; 4-(β-D-threofuranosyl)-2-phenyl-2H-1,2,3-triazole (2) in 55% yield, as well as the byproduct 4-(4-chloro-4-deoxy-D-xylo-tetritol-1-y1)-2-pheny1-2 H-1,2,3-triazole (4). Treatment of the epimeric 4-(D-lyxo-tetritol-1-y1)-2-pheny1-2H-1,2,3-triazole (6) with tosyl chloride in pyridine solution afforded the anomeric C-nucleoside analog; 4-(δ-D-threofuranosy1)-2-pheny1-2H-1,2,3-triazole (7) in
摘要在
吡啶溶液中用一摩尔当量的甲
苯磺酰氯处理4-(D-x-xylo-tetritol-1-y1)-2-苯基-2H-
1,2,3-三唑(1),得到C-核苷类似物; 4-(β-D-
呋喃呋喃糖基)-2-苯基-2H-
1,2,3-三唑(2)的收率为55%,以及副产物4-(4-
氯-4-脱氧-D-二
甲苯基) -tetritol-1-y1)-2-pheny1-2 H-
1,2,3-三唑(4)。在
吡啶溶液中用甲
苯磺酰氯处理差向异构体4-(D-lyxo-tetritol-1-y1)-2-pheny1-2H-
1,2,3-三唑(6),得到异头异构体C-核苷类似物。4-(δ-D-苏
呋喃基1)-2-苯基1-2H-
1,2,3-三唑(7)和副产物4-(4-
氯-4-脱氧-D-lyxo)的产率为29% -tetritol-1-y1)-2-pheny1-2 H-
1,2,3-三唑(9)。在
吡啶溶液中用三
氟甲
磺酰氯对1和6进行类似处理,分别得到2和7。