Cortés M, Valderrama JA, Cuellar M, Armstrong V, Preite M. Synthesis of (+)-cyclozonarone and the absolute configuration of naturally occurring (-)-cyclozonarone.
JOURNAL OF NATURAL PRODUCTS 2001;
64:348-9. [PMID:
11277753 DOI:
10.1021/np0004146]
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Abstract
Synthesis of (+)-cyclozonarone (1) has been achieved using (-)-polygodial (3) as chiral starting material. The absolute configuration of naturally occurring (-)-cyclozonarone was established as 5R,10R by comparison of spectral data and optical rotation with those of (+)-cyclozonarone.
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