薬用資源の研究 (第14報)
日本産あざみ属植物のFlavonoidについて その2 かがのあざみ,たちあざみ, けはくさんあざみの葉の成分について
1960 年 80 巻 9 号 p. 1296-1297
詳細
1960 年 80 巻 9 号 p. 1296-1297
Pale yellowish white microneedles, m.p. 250-251°, m.p. 253-254°, and m.p. 253-254°, were isolated in respective yield of 1.3%, 1%, and 0.8% from the leaves of Cirsium kagamontanum NAKAI, MAKINO, and C. inundatum MAKINO. These three substances were all identical and showed tendency to undergo gelation in the presence of water, and were determined as pectolinarin (6, 4′-dimethoxy scutellarein 7-rhamnoglucoside). The leaves of C. matsumurae NAKAI var. pubescens KITAMURA afforded pale yellowish white microneedles, m.p. 249-250°, in 0.06% yield and this was identified as luteolin 7-glucoside.
