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Sterols ofKalanchoe pinnata: First report of the isolation of both C-24 epimers of 24-alkyl-Δ25-sterols from a higher plant

✍ Scribed by Toshihiro Akihisa; W. C. M. C. Kokke; Toshitake Tamura; Taro Matsumoto

Book ID
112774337
Publisher
Springer-Verlag
Year
1991
Tongue
English
Weight
702 KB
Volume
26
Category
Article
ISSN
0024-4201

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✍ Antonio Guerriero; Cécile Debitus; Francesco Pietra 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 German ⚖ 560 KB

The sponge Stelletta sp. (Astrophorida, Stellettidae), collected at -700 m in the Coral Sea, is shown to contain sterones and sterols of the stigmastane type with a C(24)=C(25) bond for which there is no precedent in the sea. Structure elucidation of the second abundant of these steroids, stigmasta-