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Isolation of 3β-hydroxy-4β-methylfusida-17(20)(16, 21-cis), 24-diene (3β-hydroxy-protosta-17(20)(16, 21-cis), 24-diene) and a related triterpene alcohol

✍ Scribed by Tetsuyasu Hattori; Hidenori Igarashi; Shigeo Iwasaki; Shigenobu Okuda

Publisher
Elsevier Science
Year
1969
Tongue
French
Weight
225 KB
Volume
10
Category
Article
ISSN
0040-4039

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✦ Synopsis

Recently 3S-hydroxy-4S-methylfusida-17(20)[16, 2l-cis), 24-diene (I) has been assumed to be the first cyclization product of 2, 3-epoxysqualene in the bio-

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Isolation and Structural Elucidation of
Isolation and Structural Elucidation of 3-oxo-16β-acetoxyfusida-1, 17(20)(16,21-cis),24-trien-21-oic acid
✍ Shigenobu Okuda; Yoshihiro Sato; Tetsuyasu Hattori; Mikio Wakabayashi 📂 Article 📅 1968 🏛 Elsevier Science 🌐 French ⚖ 247 KB

This communioation is ooncerned with the isolation of 3-oxo-16g-aoetoxyfusida-l,l7(2O)[16,U-ois),24-trlen-2l-olo acid from the culture broth of Cenhalosnorlum caerulens and elucidation of its struoture (IIa). After removal of a great part of helvolio acid (Ia) (1) from the extraot. ed metabolites m