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New meroterpenoids from the Ascidian Aplidium conicum
Leda Garrido1, Eva Zubía, María J Ortega
1Departamento de Química Orgánica, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz, Apartado 40, Puerto Real, Spain.
Journal of Natural Products
|September 28, 2002
Abstract:
The ascidian Aplidium conicum from Tarifa Island contains the four new meroterpenoids conidione (1), conicol (2), 2-[(1'E)-3'-methoxy-3',7'-dimethylocta-1',6'-dienyl]benzene-1,4-diol (3), and conitriol (4) together with five related known compounds (5-9). It is proposed that the nonaromatic compound conidione (1) was derived by cyclization of an intermediate conitriol quinone 11. The structures of the new compounds were elucidated by interpretation of spectral data.