Dipartimento di Chimica Organica, Università di Palermo, Viale delle Scienze, 90128 Palermo, Italy.
Phytochemistry. 2010 Dec;71(17-18):2087-91. doi: 10.1016/j.phytochem.2010.08.021. Epub 2010 Sep 25.
From the aerial parts of Scutellaria hastifolia, family Lamiaceae (Labiatae), seven neo-clerodane diterpenoids (hastifolins A-G) were isolated. The products are similar to the known scuteparvin and are characterized by being trans-cinnamoyl derivatives. Structures and stereochemistry were determined by intensive NMR investigation. Six of the products form three pairs of epimers at C-13. Hastifolins A-C showed significant antifeedant activity.
从唇形科黄芩属植物Scutellaria hastifolia 的地上部分分离得到了 7 种新的 neo-clerodane 二萜类化合物（黄芩素 A-G）。这些产物与已知的 scuteparvin 相似，其特征是 trans-cinnamoyl 衍生物。通过深入的 NMR 研究确定了结构和立体化学。其中 6 种产物在 C-13 处形成了三对差向异构体。黄芩素 A-C 表现出显著的拒食活性。
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