An ethanol extract of the powdered twigs of Podocarpus imbricatus afforded 14 new diterpenoids (1–14), which all share an aromatized C ring. These isolates belong to five diterpenoid types that include abietanes (1–3), semperviranes (4–9), totaranes (10–12), a C-17 norabietane (13), and an icetexane (14). Their structures were assigned mainly by analysis of the spectroscopic data, and the absolute configuration of 1 was determined by X-ray crystallography. A biosynthetic pathway for five of the biogenetically related types of diterpenoids was proposed. Compound 7 showed moderate inhibitory activity against Zika virus with an IC₅₀ value of 2.5 μM.

中文翻译：

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来自罗汉松枝条的具有芳香化 C 环的多种二萜类化合物。

的粉末状的细枝的乙醇提取物罗汉松鸡毛得到14个新的二萜类化合物（1 - 14），其中所有的份额的芳香C环。这些分离属于五个二萜类类型，包括abietanes（13），semperviranes（4 - 9），totaranes（10 - 12），一个C-17 norabietane（13），以及icetexane（14）。它们的结构主要通过光谱数据的分析来确定，1由 X 射线晶体学确定。提出了五种生物遗传学相关的二萜类化合物的生物合成途径。化合物7对寨卡病毒表现出中等抑制活性，IC ₅₀值为 2.5 μM。