Three cycloartane glycosides from Cimicifuga rhizome and their immunosuppressive activities in mouse allogeneic mixed lymphocyte reaction |
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Authors: | Nishida Makiko Yoshimitsu Hitoshi Nohara Toshihiro |
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Institution: | Faculty of Engineering, Kyushu Kyoritsu University, Kitakyushu, Japan. |
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Abstract: | One known (1) and two new cycloartane triglycosides, 20S,22R,23S,24R-16beta,23;22,25-diepoxy-cycloartane-3beta,23,24-triol 3-O-beta-D-glucopyranosyl-(1-->2)-beta-D-glucopyranosyl-(1-->2)-beta-D-xylopyranoside (2) and 20S,22R,23S,24R-16beta,23;22,25-diepoxy-cycloartane-3beta,23,24-triol 3-O-(6-O-trans-isoferuloyl-beta-D-glucopyranosyl)-(1-->2)-beta-D-glucopyranosyl-(1-->2)-beta-D-xylopyranoside (3), were isolated from a commercial Cimicifuga Rhizome. Their structures were determined by two dimensional (2D) NMR spectroscopic analysis and chemical evidence. These compounds suppressed the proliferation of lymphocytes in mouse allogeneic mixed lymphocyte reaction. |
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