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Starfish saponins part 32. Structure of a novel steroidal 5-0-methyl galactofuranoside from the starfish astropecten indicus.

โœ Scribed by Raffaele Riccio; Luigi Minale; Shaheen Bano; Viqar Uddin Ahmad

Book ID
108382935
Publisher
Elsevier Science
Year
1987
Tongue
French
Weight
248 KB
Volume
28
Category
Article
ISSN
0040-4039

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๐Ÿ“œ SIMILAR VOLUMES

Starfish saponins, part 8. Structure of
Starfish saponins, part 8. Structure of nodososide, a novel type of steroidal glycoside from the starfish protoreaster nodosus
โœ R Riccio; L Minale; C Pizza; F Zollo; J Pusset ๐Ÿ“‚ Article ๐Ÿ“… 1982 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 264 KB

A nom2 steroidal glycoside has been isolated from the starfish Protoreaster nodosus. The structure includes a 3B,5a,6B,8B,lScr,24S-hexahydroxysteroidal moiety and a sugar moiety [2-0-methyl-B-D-xylopyranosyl-(1 + 21-a-L-arabinofuranosyZ]which is glycosidicaZZy attached at C-24 of the aglycone.

Starfish saponins III. A novel steroidal
Starfish saponins III. A novel steroidal sapogenin, 17ฮฒ-methyl-3ฮฒ,6ฮฑ-dihydroxy-18-nor-5ฮฑ-cholesta-9(11), 13-dien-23-one, from the starfish Astropecten aurantiacus
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In continuation of our work' on starfish saponins, we report the isolation of the hitherto unknown 17~-methyl-3S,6cc-dihydroxy-18-no~5~-cholesta-9(ll)-l3-dien-23-one (I) from the sapoge nin portion of Astropecten aurantiacus, and show that it is an artefact produced during acid hydrolysis. Compound