Abstract: Four known diterpenoids 7-acetyl-lushanrubescensin A, Lushanrubescensin A and B,and rabdoforrestin A have also been isolated from Isodon angustghlius var. glabrescens, and their structures have revised to l, 2, 3, and 4 from the structures 5, 6, 7 and 8 reported previously by the spectral analysis, especially on the basis of 2D NMR data in this paper.

Key words: Isodon angustghlius var. glabrescens

摘要： 从无毛狭叶香茶菜（Isodon angustifolius var．glabrescens H．W．Li）中分离得到 4个已知二萜化合物：7-乙酰基-鲁山冬凌草甲素，鲁山冬凌草甲素、乙素和紫萼香茶菜甲素，经二维核磁共振波谱（2D－NMR）解析表明，它们的结构分别由先前报道的 5，6，7和 8应修订为结构 1，2，3和 4。

关键词: 无毛狭叶香茶菜, 7-乙酰基-鲁山冬凌草甲素, 鲁山冬凌草甲素、乙素和紫萼香茶菜甲素, 结构修订