(2<i>E</i>,6<i>R</i>)-8-Hydroxy-2,6-dimethyl-2-octenoic Acid, a Novel<i>Anti</i>-osteoporotic Monoterpene, Isolated from<i>Cistanche salsa</i>
作者:Kohji YAMAGUCHI、Chikara SHINOHARA、Sachiko KOJIMA、Mikiko SODEOKA、Tomoko TSUJI
DOI:10.1271/bbb.63.731
日期:1999.1
(2E,6R)-8-Hydroxy-2,6-dimethyl-2-octenoic acid [(R)-HDOA], a novel monoterpene from Cistanche salsa, a Chinese herb, was found to be an anti-osteoporotic compound. The extract of Cistanche salsa significantly suppressed the bone weight loss in ovariectomized mice, a postmenopausal osteoporosis model. The active substance was then purified by using this osteoporotic model and the chemical structure was determined. The active compound from Cistanche salsa, (R)-HDOA, suppressed the decrease of bone weight and the mechanical strength in the ovariectomized mice. Furthermore, (R)- and (S)-HDOA were synthesized and the activity of each was evaluated. (R)-HDOA suppressed the bone weight loss, although (S)-HDOA did not showed any activity.
(2E,6R)-8-羟基-2,6-二甲基-2-辛烯酸[(R)-HDOA]是从中国草药肉苁蓉中发现的一种新型单萜化合物,具有抗骨质疏松特性。肉苁蓉提取物显著抑制了卵巢切除小鼠(一种绝经后骨质疏松模型)的骨重量损失。通过利用这一骨质疏松模型对该活性物质进行纯化,并确定了其化学结构。肉苁蓉中的活性化合物(R)-HDOA抑制了卵巢切除小鼠骨重量的减少和力学强度的下降。进一步合成了(R)-和(S)-HDOA,并对它们各自的活性进行了评估。(R)-HDOA抑制了骨重量损失,而(S)-HDOA未显示出任何活性。