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Synthesis of neosaponins having an α-l-rhamnopyranosyl-(1→4)-[α-l-rhamnopyranosyl-(1→2)]-d-glucopyranosyl glyco-linkage

✍ Scribed by Tsuyoshi Ikeda; Hiroyuki Miyashita; Tetsuya Kajimoto; Toshihiro Nohara

Book ID: 104230247
Publisher: Elsevier Science
Year: 2001
Tongue: French
Weight: 81 KB
Volume: 42
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)00173-3

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✦ Synopsis

To verify the role of the a-L-rhamnopyranosyl-( 14)-[a-L-rhamnopyranosyl-( 12)]-b-D-glucopyranosyl (chacotriosyl) moiety of steroidal glycosides from Solaum plants in their antitumor and antivirus activities, chacotriosides of diosgenin, cholesterol, and glycrrhetic acid were synthesized by developing our trans-oligoglycosidation. The chacotriosyl trichloroacetimidate was linked to the aglycones to afford neoglycosides as a mixture of a and b anomers, that was easily separated with ODS chromatography.

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