薬用資源の研究 (第9報)
邦産Boehmeria属植物の成分 その1 からむし, やぶまお, おにやぶまお及びらせいたそうの葉のFlavonoidについて
1957 年 77 巻 1 号 p. 112-113
詳細
1957 年 77 巻 1 号 p. 112-113
Some pale yellow microneedles, m.p. 200° (decomp.), were obtained in 0.7% yield from the leaves of Boehmeria nivea GAUD (Urticaceae) and were identified as rhoifolin (apigenin-7-rhamnoglucoside), affording 1 mole each of apigenin, glucose, and rhamnose by hydrolysis. The leaves of B. japonica MTQ., B. holoserisea BLUME, and B. biloba WEED. afforded the same glycoside as pale yellow microneedles, m.p. 175-176°, in respective yields of 0.1, 0.15, and 0.15%. This was identified as rutin.
