Isolation and Structure Determination of Cerebrosides from Garlic, the Bulbs of Allium sativum L.

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  • Isolation and Structure Determination o

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Five cerebrosides, AS-1-1 (1), AS-1-2 (2), AS-1-3 (3), AS-1-4 (4), and AS-1-5 (5) were obtained from the CHCl3-MeOH extract of Garlic, the bulbs of Allium sativum L. (Liliaceae). On the basis of spectroscopic results, structures of 1-5 have been elucidated. Compounds 1, 2, and 5 were new cerebrosides. Compounds 3 and 4 were identified with the known glucocerebroside soya-cerebroside I and II, respectively, which have been previously obtained from soybean with ionophoretic activity. Positive ion FAB-MS/MS of the (M+Na)+ ion gave important information on the length of the fatty acyl chain of the ceramide moiety.

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