文章基本信息

标题：Studies on Triterpenoids. IX. The Chemical Constituent of Bird Lime extracted from Rhododendron linearifolium SIEB. ET ZUCC. VAR. macrosepalum MAKINO.
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作者：Tatsuo Kariyone ; Yohei Hashimoto ; Seisho Tobinaga 等
期刊名称：Chemical and Pharmaceutical Bulletin
印刷版ISSN：0009-2363
电子版ISSN：1347-5223
出版年度：1957
卷号：5
期号：4
页码：369-370
DOI：10.1248/cpb1953.5.369
出版社：The Pharmaceutical Society of Japan
摘要：By the extraction of buds of Rhododendron linearifolium SIEB. ET ZUCC. VAR. macrosepalum MAKINO, a presence of a viscous matter was discovered, the properties of which were very similar to those of bird lime in Japanese market. By its saponification, ursolic acid, melissyl alcohol, motiol, and motic acid were separated. The latter two were proved to be new triterpenoids with following constants : Motiol, C₃₀H₅₀O, m.p. 217°, [α]²⁴_D -27.4. Motic acid, C₃₀H₅₀O₃, m.p. 283∼284°, [α]¹²_D-73.40.