Tetrahedron Letters p. 9239 - 9243 (2000)
Update date:2022-08-05
Topics:
Merino
Del Alamo
Bona
Franco
Merchan
Tejero
Vieceli
The reaction of O-methyl-O-tert-butyldimethylsilyl ketene acetal with N-benzyl and N-methyl-2,3-O-isopropylidene-D-glyceraldehyde nitrones in the presence of boron trifluoride etherate afforded the corresponding isoxazolidin-5-ones in excellent yields and anti-selectivities. The obtained compounds were used as key intermediates for the synthesis of isoxazolidinyl nucleosides of the L-series. (C) 2000 Elsevier Science Ltd.
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