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Novel neurotrophic phenylbutenoids from Indonesian ginger Bangle, Zingiber purpureum
Miwa Kubo1, Minori Gima1, Kohei Baba1
1Faculty of Pharmaceutical Sciences, Tokushima Bunri University, 180 Yamashiro-cho, Tokushima 770-8514, Japan.
Abstract:
Two new curcuminoids 1 and 2, and a new phenylbutenoid dimer 3, were isolated from Bangle (Zingiber purpureum). Their structures were determined on the basis of comprehensive spectroscopic data and their biogenetic pathway. Compounds 1 and 2 are the first example of curcumin coupled with phenylbutenoid. Compounds 1 and 2 promoted neurite outgrowth of NGF-mediated PC12 cells at concentrations ranging from 1 to 10 μM. In addition, compound 1 was found to accelerate the prevention of Aβ42 aggregation.
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