Crinitol from Cystoseira crinita

Some molecules, like those of oxocrinol and 6,10-dimethyl-5,9-undecadien-2,8-dione (a derivative of gerany-lacetone), both isolated from Cystoseira crinita, could be degradation products of crinitol (Fattorusso et al., 1976 Amico et al., 1980). 

Crinitol (1) was first isolated from one of the most studied marine brown algae, Cystoseira crinita Bory (Cystoseiraceae), and its structure was established as 3,7,11,15-tetramethylhexadeca-2,6,10,14-tetraene-l,9-diol (1) it was later found in the closely related species Cystoseira balearica (2). The absolute configuration at C-9 was not determined in the Cystoseira-deiived samples, but was determined as Rin crinitol isolated from another brown... 

M. Piattelli, and C. Tringali, Oxocrinol and crinitol, novel linear terpenoids from the brown alga Cystoseira crinita. Tetrahedron Lett., (1976) 937-940. 

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