Singh Narendra, Mahmood Umar, Kaul V K, Jirovetz Leopold
Department of Natural Plant Products, Institute of Himalayan Bioresource Technology, Post Box No. 6, Palampur-176061 (HP), India.
Nat Prod Res. 2006 May 20;20(6):593-7. doi: 10.1080/14786410500185550.
A new phthalic acid ester 1,2-benzenedicarboxylic acid bis(2S-methyl heptyl) ester (1) was isolated from the hexane extract of the whole plant of Ajuga bracteosa. In addition, chloroform and methanol extracts yielded neo-clerodane diterpene ajugarin-I and two iridoid glycosides, reptoside and 8-O-acetyl harpagide. The structures of all the compounds were confirmed by extensive spectroscopic analysis. From the two oily fractions nine and six volatile constituents respectively were identified by GCMS. Linalyl acetate was found to be common in both the oil fractions. This plant is a new source of linalyl acetate, a valuable perfumery compound.
从苞片筋骨草全草的己烷提取物中分离出一种新的邻苯二甲酸酯1,2 -苯二甲酸双(2S -甲基庚基)酯(1)。此外，氯仿和甲醇提取物产生了新克罗烷二萜筋骨草素-I以及两种环烯醚萜苷，即reptoside和8 - O -乙酰哈帕苷。所有化合物的结构均通过广泛的光谱分析得以确证。通过气相色谱-质谱联用仪分别从两个油状馏分中鉴定出9种和6种挥发性成分。发现乙酸芳樟酯在两个油状馏分中都存在。这种植物是有价值的香料化合物乙酸芳樟酯的新来源。
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