Identification of sixteen new galactocerebrosides from the starfish Protoreaster nodosus.
Twenty-one galactocerebrosides (1-21), including sixteen new compounds (3-7, 9-17, 19, 21), were identified from a cerebroside molecular species obtained from the chloroform/methanol extract of pyloric caeca dissected from the starfish Protoreaster nodosus. The structures of these galactocerebrosides were determined on the basis of chemical and spectroscopic evidences. Especially, one-pot GC-MS analysis following methanolysis and periodate oxidation of these galactocerebrosides gave efficient structural information of ceramide moiety rapidly in minute amounts.
Pan
Ke
K
Graduate School of Pharmaceutical Sciences, Kyushu University, Higashi-ku, Fukuoka, Japan.
Inagaki
Masanori
M
Ohno
Nagisa
N
Tanaka
Chiaki
C
Higuchi
Ryuichi
R
Miyamoto
Tomofumi
T
D000818:Animals; D005699:Galactosylceramides / Q000032:analysis* / Q000302:isolation & purification; D008401:Gas Chromatography-Mass Spectrometry; D015394:Molecular Structure; D013215:Starfish / Q000737:chemistry*
D005699:Galactosylceramides