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Hexabranchus sanguineus Ulapualides

The compounds isolated from the nudibranch Hexabranchus sanguineus varied with collecting location but usually included dihydrohalichondra-mide (261) and tetrahydrohalichondramide (268). Compounds 261, 263, 265, and 268 show antifungal activity and inhibit cell division in the fertilized sea urchin egg assay (218). Three cytotoxic macrolides, mycalolides A-C (269-271), were isolated from a Japanese sponge of the genus My-cale, and their structures were elucidated to be hybrids of ulapualides and halichondramide (219). [Pg.80]

The eggs of the nudibranch Hexabranchus sanguineus collected off the coast of Hawaii have yielded the macrolides ulapualide A (62) and ulapaulide B (63) (25) both of which incorporate the unprecedented trisoxazole moiety. These compounds were obtained as colorless oils whose structure determination was... [Pg.269]

Chattopadhyay, S. K., and Pattenden, G. (1998). Total synthesis of ulapualide A, a novel tris-oxazole containing macrolide from the marine nudibranch Hexabranchus sanguineus. Tetrahedron Lett. 39,6095-6098. [Pg.94]

Chattopadhyay, S.K. and Pattenden, G. (2000) A total synthesis of the unique tris-oxazole macrolide ulapualide A produced by the marine nudibranch Hexabranchus sanguineus. J. Chem. Soc. Perkin Trans. I. 2429-2454. [Pg.1460]


See other pages where Hexabranchus sanguineus Ulapualides is mentioned: [Pg.211]    [Pg.182]    [Pg.16]    [Pg.1991]   


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