ヤツデのサポニンの研究
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Five triterpene glycosides, named α-, β_1-, β_2-, β_3-, and β_4-fatsin, were obtained from the leaves of Fatsia japonica DECNE et PLANCH. α-Fatsin (mp 251-253°(decomp.), [α]^<25>_D+32.2°), β_1-fatsin (mp 210-215°(decomp.), [α]^<25>_D+17.6°), and β_2-Fatsin (mp 239-241°(decomp.), [α]^<25>_D+16.6°) were characterized as hederagenin 3-O-β-D-glucopyranosyl (1-4)-α-L-arabinopyranoside (I), 3-O-β-D-glucopyranosyloleanolic acid (V), and hederagenin 3-O-α-L-arabinopyranoside (IX), respectively. Hydrolysis of β_3-Fatsin afforded oleanolic acid and glucose, and the sapogenin of β_4-Fatsin was proved to be 3β, 16α-dihydroxyolean-12-en-28-oic acid (echinocystic acid).
- 公益社団法人日本薬学会の論文
- 1975-01-25
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