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Bicyclic precursors, sugar synthesis

Piperidine 121 served as a precursor in the preparation of several bicyclic imino sugars as demonstrated in a short six step synthesis of unnatural (—)-castanospermine 128 (Scheme 25). Protection of 121 with the Cbz group gave derivative 123, which - upon treatment with benzo-quinone, White s Pd catalyst,and Yb(OTQ3 - was converted into oxazolidinone 124, practically as a single diastereoisomer. Subsequent... [Pg.342]

See other pages where Bicyclic precursors, sugar synthesis is mentioned: [Pg.501] [Pg.306] [Pg.352] [Pg.145] [Pg.306] [Pg.322] [Pg.5] [Pg.109]

See also in sourсe #XX -- [ Pg.80 ]

See also in sourсe #XX -- [ Pg.40 , Pg.74 , Pg.75 , Pg.76 , Pg.77 , Pg.78 , Pg.79 ]

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Bicycles synthesis

Bicyclic synthesis

Sugar synthesis

Synthesis bicyclization