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Triterpenoids from Abies spp. VI. “Isofirmanic” and (24E)-lanosta-8,24-diene-3,23-dion-26-oic acids from Siberian fir needles |
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| Authors: | V A Raldugin S A Shevtsov V I Roshchin V A Pentegova |
| Abstract: | Two triterpene acids have been isolated in the form of methyl esters from an extract of Siberian fir needles, and their structures have been established as 9β-lanosta-7,25-diene-3,23-dion-26-oic and (24E)-lanosta-8,24-dien-3,23-dion-26-oic acids, respectively. |
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