Yamaguchi-Type Lactonization as a Key Step in the Synthesis of Marine Metabolites: (+)-Luffalactone
作者:Pilar Basabe、Olga Bodero、Isidro S. Marcos、David Díez、Araceli Blanco、Mónica de Román、Julio G. Urones
DOI:10.1021/jo9013996
日期:2009.10.16
A Yamaguchi-type cyclization of 5 and subsequent photochemical oxidation of the furanic ring are the key steps in the first synthesis of the marinemetabolite (+)-luffalactone 4 and its epimer at C-16, 16-epi-luffalactone, 27. With this work, we have successfully established the absolute configuration of the natural product. The key intermediate 5 was obtained from the easily accessible diacetate 6a/6b