ECB-ART-36533
J Nat Prod
1996 Jan 01;591:30-4. doi: 10.1021/np960022s.
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Novel marine di-Z-carotenoids: cucumariaxanthins A, B, and C from the sea cucumber Cucumaria japonica.
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The novel marine carotenoids, cucumariaxanthins A (1), B (2), and C (3), were isolated from the northern sea cucumber Cucumaria japonica. Their structures and absolute stereochemistries were determined to be (5S,6S,5''S,6''S)-(9Z,9''Z)-5,6,5'',6''-tetrahydro-beta,beta- carotene-4,4''-dione for 1; (5S,6S,4''S,5''S,6''S)-(9Z,9''Z)-4''-hydroxy-5,6,5'',6''-tetrahydro-beta, beta- caroten-4-one for 2; and (4S,5S,6S,4''S,5''S,6''S)-(9Z,9''Z)-5,6,5'',6''-tetrahydro-beta,beta-car otene-4,4''- diol for 3 by extensive spectroscopic analysis and by the modified Mosher''s method. Cucumariaxanthin C showed an inhibitory effect on Epstein-Barr virus activation in a short-term in vitro assay.
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Genes referenced: LOC100887844