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The revised structure and absolute configuration of laurefucin from Laurencia nipponica Yamada

✍ Scribed by Akio Furusaki; Etsuro Kurosawa; Akio Fukuzawa; Toshi Irie

Publisher
Elsevier Science
Year
1973
Tongue
French
Weight
225 KB
Volume
14
Category
Article
ISSN
0040-4039

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✦ Synopsis

C15H2602Br2' involving ring isomerization, m/e 4CC, 398 and 396 (M+), T 9.12 (3H, br. t), 9.04 (3H, t, J=7), 7.94 (lH, m), 7.74 (2H, m), 7.42 (1H quintet), 6.4-5.8 (6H, m), which was then degradated to an unsaturated glycol (V) *dith Zn-acetic acid as described in previous report (1).

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The absolute configuration of cycloeudesmol, isolated from the red alga Lauren&a nipponica Yamada and Chondria oppositiclada Dawson, is determined by the crystallographic study. In our previous report'), the structure of isocycloeudesmol, C15HZ60, isolated from L. nipponica Yamada, has been proposed

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