FIRST EXCEPTIONS TO THE"IMBACH RULE"FOR β-D-RIBOFURANOSYL NUCLEOSIDES
キーワード:
anomeric configuration
1982 年 30 巻 3 号 p. 1117-1120
詳細
1982 年 30 巻 3 号 p. 1117-1120
Introduction of an anisotropic substituent to the C-6 position of 2', 3'-O-isopropylideneuridine altered the differences in the chemical shift between the methyl signals (Δδ Me) of the isopropylidene group. Thus, exceptions to Imbach's criterion for β-D-ribofuranosyl nucleosides have now been observed for the first time.
