Al-Musayeib N M, Abbas F A, Ahmad M S, Mossa J S, El-Feraly F S
Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia.
Phytochemistry. 2000 Aug;54(8):771-5. doi: 10.1016/s0031-9422(00)00185-0.
The new labdane diterpenes otostegin A (2), otostegin B (6) and 15-epi-otostegin B (7) were isolated from the aerial parts of Otostegia. fruticosa, besides the previously known labdanes preleoheterin (1), leoheterin (3), leopersin C and 15-epi-leopersin C (4, 5), ballonigrin (9) and vulgarol (11), along with the iridoid glucoside 8-O-acetylharpagide (10). The structure elucidation of all the isolated compounds was based on their spectral data and chemical derivatization.
从灌木状耳草的地上部分分离得到了新的半日花烷二萜类化合物耳草素A(2)、耳草素B(6)和15-表耳草素B(7),此外还得到了之前已知的半日花烷类化合物前异叶半日花素(1)、异叶半日花素(3)、异叶半日花素C和15-表异叶半日花素C(4、5)、气球花素(9)和寻常醇(11),以及环烯醚萜苷8-O-乙酰哈帕苷(10)。所有分离得到的化合物的结构解析均基于其光谱数据和化学衍生化。