Journal
TETRAHEDRON-ASYMMETRY
Volume 19, Issue 10, Pages 1204-1209Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetasy.2008.04.028
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The 1,3-dipolar cycloaddition of enantiopure cyclic hydroxylated nitrones and allyl nucleobases has been exploited for the preparation of a novel class of homonucleoside mimetics, where the furanose ring is replaced by a pyrrolo[1,2-b]isoxazolidine system. The nitrones were easily prepared starting from L-malic and L-tartaric acids and gave cycloadducts in a diastereoselective manner, which were deprotected to give good yields of the homo-N,O-nucleoside mimetics. The reduction of the isoxazolidine ring, a 1,3-aminoalcohol equivalent, allows easy access to other new pyrrolidine nucleoside mimetics. (C) 2008 Elsevier Ltd. All rights reserved.
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