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Constituents of holothuroidea, I. Isolation and structures of three triterpenoid aglycones, cucumechinol A, B, and C, from the sea cucumber Cucumaria echinata
Author(s) -
Miyamoto Tomofumi,
Togawa Kenichi,
Higuchi Ryuichi,
Komori Tetsuya
Publication year - 1990
Publication title -
liebigs annalen der chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 0170-2041
DOI - 10.1002/jlac.199019900106
Subject(s) - sea cucumber , triterpenoid , hydrolysate , botany , glycoside , chemistry , biology , stereochemistry , hydrolysis , ecology , biochemistry
Three new holostane 2) ‐type triterpenoid aglycones named cucumechinol A ( 1 ), B ( 2 ), and C ( 3 ) were isolated from the acidic hydrolysate of the crude glycoside mixture prepared from the whole sea cucumber Cucumaria echinata . The structures were identified on the basis of spectral evidence as 3β‐hydroxyholost‐9(11)‐ene‐16,23‐dione ( 1 ), 3β‐hydroxyholost‐9(11)‐en‐23‐one ( 2 ), and 3β‐hydroxyholost‐8(9)‐ene‐16,23‐dione ( 3 ), respectively.