期刊
TETRAHEDRON LETTERS
卷 50, 期 26, 页码 3593-3596出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2009.03.056
关键词
Crown ethers; O-Glycosylation; Macrocycles; Michael addition; Ring-closing metathesis
The macrocyclization of linear D-galacto-2-heptulopyranose-containing oligoketosides has been carried out by intramolecular glycosidation and ring-closing metathesis. The aglycon fragment of the cyclic neglycoconjugates thus formed was an alkylidene or a polyether chain. One of the oligoketoside-crown ethers showed a moderate asymmetric induction in the Cram model phenyl acetate-acrylate addition. (C) 2009 Elsevier Ltd. All rights reserved.
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