Synthesis and N-functionalization of isoxazolidines: a new approach to nucleoside analogues

- N-Unsubstituted isoxazolines result from 1,3-cycloadditions of oxime and alkenes.
- N-Functionalizations of isoxazolidines with chemically active groups are described.
- A new approach to nucleoside analogues from isoxazolidines is presented.