On the genuine sapogenol of meteogenin, an a-ring aromatized spirostanol from metanarthecium luteo-viride maxim. Structure elucidation by means of soil bacterial hydrolysis
✍ Scribed by Isao Kitagawa; Tsutomu Nakanishi; Yoshinobu Morii; Itiro Yosioka
- Publisher
- Elsevier Science
- Year
- 1976
- Tongue
- French
- Weight
- 247 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
Nine spirostanols (metagenin Q), 3-epi-metagenin (2), nogiragenin, neonogiragenin, narthogenin, iaonarthogenin, meteogenin (z), neometeogenin (ft), and luvigenin (A)) were elucidated as the sapogenols of .&tanmthe&m luteo-vi&& Maxim. (Liliaceae). 1,2) They were obtain- ed by acid hydrolysis of the total glycoside mixture. Among them, three minor sapogenole ( meteogenin (z), neometeogenin (A), and luvigenin (2)) are remarkable in having an aromatized A-ring and have been presumed to be the artifacts which were formed secondarily from the precursory genuine sapogenols during the acid hydrolysis of the parent glycosides. ld,e) Recently, by means of the soil bacterial hydrolysis of the same glycoside mixture, we