Short synthesis of the common trisaccharide core of kankanose and kankanoside isolated from Cistanche tubulosa

• Goutam Guchhait and
• Anup Kumar Misra

Beilstein J. Org. Chem. 2013, 9, 705–709, doi:10.3762/bjoc.9.80

• isolated from the medicinally active plant Cistanche tubulosa. All glycosylations were carried out under nonmetallic reaction conditions. Yields were very good in all intermediate steps. Keywords: Cistanche tubulosa; glycosylation; kankanoside; synthesis; trisaccharide; Introduction Cistanche tubulosa (C

• ), 68.3 (C-6C), 61.3 (C-6A), 35.8 (CH2), 16.5 (CH3); ESIMS: 615.2 [M + Na]+; Anal. calcd for C26H40O15: C, 52.70; H, 6.80; found: C, 52.56; H, 7.0. Structure of the synthesized trisaccharide core found in kankanose, kankanoside F, H1, H2 and I isolated from Cistanche tubulosa. Reagents: (a) 0.1 M CH3ONa