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Biologically active glycosides from asteroidea, IV. Steroid oligoglycosides from the starfish Astropecten latespinosus Meissner by Yoichi Itakura; Tetsuya Komori; Toshio Kawasaki is a Chemistry article available to read on EtoBox.

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## Abstract Three aglycones, 3β,6α,20ξ‐trihydroxy‐5α‐cholest‐9(11)‐en‐23‐one (**1**), 3β,6α‐dihydroxy‐5α‐cholesta‐9(11),20(22)‐dien‐23‐one (**2**), and 3β,6α‐dihydroxy‐5α‐pregn‐9(11)‐en‐20‐one (**3**), were isolated in form of the diacetates (**1′, 2′**, and **3′**) from the enzymatic hydrolysate of an oligoglycoside mixture prepared from the whole bodies of Astropecten latespinosus Meissner. Two oligoglycosides were newly isolated from solvolysis products of the same glycoside mixture. The structures were elucidated by chemical and spectroscopic evidence to be 3β,6α,20ξ‐trihydroxy‐23‐oxo‐5α‐cholest‐9(11)‐en‐6α‐yl O‐β‐D‐fucopyranosyl‐(1→3)‐O‐β‐D‐fucopyranosyl‐(1→2)‐O‐β‐D‐galactopyranosyl‐(1→4)‐__O__‐[β‐D‐quinovopyranosyl‐(1→2)]‐O‐β‐D‐xylopyranosyl‐(1→3)‐O‐β‐D‐quinovopyranoside (**4**) and 3β,6α,20ξ‐trihydroxy‐23‐oxo‐5α‐cholest‐9(11)‐en‐6α‐yl O‐β‐D‐fucopyranosyl‐(1→2)‐O‐β‐D‐glucopyranosyl‐(1→4)‐O‐[β‐D‐quinovopyranosyl‐(1→2)]‐O‐β‐D‐xylopyranosyl‐(1→3)‐O‐β‐D‐quinovopyranoside (**5**).

Who reads Biologically active glycosides from asteroidea, IV. Steroid oligoglycosides from the starfish Astropecten latespinosus Meissner?

Author

Yoichi Itakura; Tetsuya Komori; Toshio Kawasaki

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); VCH Verlagsgesellschaft; Wiley (ISSN 0947-3440)

Published

1983

Language

EN

Field

Chemistry (Physical Sciences)