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Acta Chimica Sinica ›› 2008, Vol. 66 ›› Issue (5): 587-590. Previous Articles
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张鲁中，李立奇，任小娟，谢志翔*
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ZHANG Lu-Zhong, LI Li-Qi, REN Xiao-Juan, XIE Zhi-Xiang*
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The first synthesis of β-(pregna-5,20-diene-3β-yl)-D-xylopyranoside was achieved from 16-dehydropregnenolon-3β-yl acetate in six steps with a 15.0% overall yield. The key steps were selective reduction of α,β-unsaturated ketone, Shapiro reaction and Koenig-Knorr reactions.
Key words: steroidal saponin, selective reduction of α,β-unsaturated ketone, Shapiro reaction, Koenig- Knorr reaction
ZHANG Lu-Zhong, LI Li-Qi, REN Xiao-Juan, XIE Zhi-Xiang*. Synthesis of β-(Pregna-5,20-diene-3β-yl)-D-xylopyranoside[J]. Acta Chimica Sinica, 2008, 66(5): 587-590.
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