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3α-Hydroxy-14α-methyl-Δ9(11) sterols from Neolitsea aciculata

✍ Scribed by Kouya Yano; Toshihiro Akihisa; Toshitake Tamura; Taro Matsumoto

Book ID
103337212
Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
287 KB
Volume
31
Category
Article
ISSN
0031-9422

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✍ Ch. Tamm; W. Zürcher 📂 Article 📅 1963 🏛 John Wiley and Sons 🌐 German ⚖ 355 KB

On treatment with 0,05 N HC1 in aqueous ethanol both 1,19-isopropylidenouabagenin (11) and ouabagenin (111) yield two new dehydration products, namely monoanhydro-ouabagenin and tetraanhydro-ouabagenin, in the ratio of 1 : 10. Monoanhydro-ouabagenin is proven to possess the structure of l u , lla-ox