Journal
CHEMICAL & PHARMACEUTICAL BULLETIN
Volume 54, Issue 12, Pages 1647-1649Publisher
PHARMACEUTICAL SOC JAPAN
DOI: 10.1248/cpb.54.1647
Keywords
sphingolipid; ceramide; starfish; Luidia maculata; anti-hyperglycemic activity
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A new sphingosine-type ceramide LMCer-1-1 (1) and three new phytosphingosine-type ceramides, LMCer-2-1 (2), LMCer-2-6 (3), and LMCer-2-7 (4), were isolated from the anti-hyperglycemic active ceramide molecular species LMCer-1 and LMCer-2, obtained from the less polar fraction of the chloroform-methanol extract of the whole bodies of Luidia maculata. The structures of these ceramides were determined on the basis of chemical and spectroscopic evidence as: (2S,3R,4E,2'R)-2-(2-hydroxyhexadecanoylamino)-16-methyl-4-octadecene-1,3-diol (1), (2S,3S,4R,2'R)-2-(2-hydroxyhexadecanoylamino)-16-methyl-octadecane-1,3,4-triol (2), (2S,3S,4R,2'R)-2-(2-hydroxydocosanoylamino)-hexadecane-1,3,4-triol (3), and (2S,3S,4R,2'R)-2-(2-hydroxydocosanoylamino)-14methyl-hexadecane-1,3,4-triol (4).
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