Abstract
A new procedure has been developed for the synthesis of diterpenoid (16S)-dihydrosteviol [(16S)-13-hydroxy-ent-kauran-19-oic acid] by acid hydrolysis (0.7% hydrochloric acid) of SWETA food sweetener and subsequent reduction of the resulting mixture of caurenoids with hydrazine hydrate over Raney nickel. The molecular geometry of (16S)-dihydrosteviol, as well as of Δ15-steviol (13-hydroxy-ent-kaur-15-en-19-oic acid), was determined for the first time by X-ray analysis.
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Original Russian Text © R.N. Khaibullin, I.Yu. Strobykina, V.E. Kataev, O.A. Lodochnikova, A.T. Gubaidullin, R.Z. Musin, 2009, published in Zhurnal Obshchei Khimii, 2009, Vol. 79, No. 5, pp. 795–799.
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Khaibullin, R.N., Strobykina, I.Y., Kataev, V.E. et al. New synthesis of diterpenoid (16S)-dihydrosteviol. Russ J Gen Chem 79, 967–971 (2009). https://doi.org/10.1134/S107036320905017X
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DOI: https://doi.org/10.1134/S107036320905017X