The new diterpenes canariquinone (9), rosmaquinone (10), and 11-acetoxycarnosic acid (6), together with the already known 7-ethoxyrosmanol (1), 7-methoxyrosmanol (2), and rosmanol (3), were isolated from the flowers of Salviacanariensis. The structure of the new substances was established by a combination of chemical and spectroscopic means. Reaction of galdosol (4), isolated from the aerial part of the same plant, with diazomethane, unexpectedly gave the new homoditerpenes 15 and 16, the structures of which were determined by spectroscopic methods. A mechanism accounting for the formation of these substances is suggested. Keywords: abietane diterpenes, Salvia, Labiatae, antibiotic activity, galdosol reactivity.
新的二萜类化合物canariquinone (9),rosmaquinone (10),以及11-acetoxycarnosic acid (6),连同已知的7-ethoxyrosmanol (1),7-methoxyrosmanol (2),和rosmanol (3),从Canary Sage的花中分离出来。新物质的结构通过化学和光谱手段相结合确定。从同一植物的地上部分分离出来的galdosol (4)与重氮甲烷反应,意外地产生了新的同源二萜类化合物15和16,其结构通过光谱方法确定。提出了一种解释这些物质形成的机制。关键词:亚松烷二萜类化合物,鼠尾草,唇形科,抗生素活性,galdosol反应性。