期刊
TETRAHEDRON-ASYMMETRY
卷 16, 期 24, 页码 4056-4064出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetasy.2005.11.010
关键词
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CuCl-catalysed cycloaddition of methyl propiolate to O,O-diisopropyl (1S,2R,3S)- and (1R,2R,3S)-, or O,O-dibenzyl (1S,2R,3S)-, (1R,2R,3S)-, (1S,2R,3R)- and (1R,2R,3R)-4-azido-1,2,3-trihydroxy-2,3-O-isopropylidenebutylphosphonates followed by methylation of HO-C-1, ammonolysis of methoxycarbonyl groups and hydrolysis of isopropylidene acetals led to diisopropyl (1S,2,R,3S)- and (1R,2R,3S)-4-(4-carbamoyl-1,2,3-triazol-1-yl)-2,3-dihydroxy-1-methoxybutylphosphonates or, after hydrogenolytic removal of benzyl groups, to (1S,2R,3S)-, (1R,2R,3S)-, (1S,2R,3R)- and (1R,2R,3R)-4-(4-carbamoyl-1,2,3-triazol-1-yl)-2,3-dihydroxy-1-methoxybutylphosphonic acids. (c) 2005 Elsevier Ltd. All rights reserved.
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