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Synlett 1993; 1993(1): 54-56
DOI: 10.1055/s-1993-22346
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Total Synthesis of Intensely Sweet Saponin, Osladin

Hidetoshi Yamada* , Mugio Nishizawa
  • *Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-Cho, Tokushima 770, Japan
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Publication History

Publication Date:
19 March 2002 (online)

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Total synthesis of a steroidal trisaccharide osladin (1) which is the sweet principle of a fern Polypodium vulgare has been accomplished from aldehyde 3 by developing a triflic acid catalyzed 2′-discriminated and β-selective glucosylation as well as an α-selective thermal rhamnosylation.

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