Browsing by Author "Kizu, Haruhisa"

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Browsing by Author "Kizu, Haruhisa"

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  • Kato, Atsushi; Kano, E.; Adachi, Isao; Molyneux, R. J.; Watson, Alison A.; Nash, Robert J.; Fleet, George W. J.; Wormald, M. R.; Kizu, Haruhisa; Ikeda, Kyoko; Asano, Naoki (2003-02-07)
    The first polyhydroxylated pyrrolizidine alkaloid with a hydroxymethyl group at C-3 was isolated from pods of Alexa leiopetala (Leguminosae) and designated alexine 1. The Australian legume Castanospermum australe is also ...
  • Asano, Naoki; Yokoyama, Kae; Sakurai, Mio; Ikeda, Kyoko; Kizu, Haruhisa; Kato, Atsushi; Arisawa, Munehisa; Hoke, Dirk; Watson, Alison A.; Nash, Robert J. (2001-07)
    Three dihydroxynortropanes, 2α,7β-dihydroxynortropane, 2α,3β-dihydroxynortropane, and 3α,7β-dihydroxynortropane, were isolated from calystegine-producing plants in the families Convolvulaceae and Solanaceae. 2α,7β-Dihydr ...
  • Kato, Atsushi; Nash, Robert J.; Asano, Naoki; Okamoto, T.; Kizu, Haruhisa; Higuchi, Y.; Adachi, Isao; Goto, H.; Hollinshead, Jackie (2006-08-05)
    Ginger (Zingiber officinale Roscoe) continues to be used as an important cooking spice and herbal medicine around the world. Scientific research has gradually verified the antidiabetic effects of ginger. Especially gingerols, ...
  • Kizu, Haruhisa; Yasuda, Kayo; Yamashita, Toru (2002)
    Chromatographic separation of the pod extract of Angylocalyx pynaertii resulted in the isolation of 13 sugar-mimic alkaloids (1−13). The structures of the new alkaloids were elucidated by spectroscopic methods as the ...
  • Yasuda, Kayo; Fan, J. -. Q.; Kizu, Haruhisa; Molyneux, R. J.; Nash, Robert J.; Kato, Atsushi; Asano, Naoki; Fleet, George W. J. (2001-01)
    The extract of bark of Angylocalyx pynaertii (Leguminosae) was found to potently inhibit mammalian α- l-fucosidases. A thorough examination of the extract resulted in the discovery of 15 polyhydroxylated alkaloids, including ...
  • Kato, Atsushi; Lee, Heui S.; Kizu, Haruhisa; Kameda, Yukihiko; Ikeda, Kyoko; Nash, Robert J.; Yasuda, Kayo; Ryu, Kang S.; Asano, Naoki; Yamashita, Toru (2001-08-16)
    New polyhydroxylated alkaloids, (2R,3R,4R)-2-hydroxymethyl-3,4-dihydroxypyrrolidine-N-propionamide from the root bark of Morus alba L., and 4-O-α-d-galactopyranosyl-calystegine B2 and 3β,6β-dihydroxynortropane from the ...

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