Synthetic studies on sugar-fused erinacincs

Ayato Sato, Tomoya Masuda, Hirokazu Arimoto, Daisuke Uemura

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


The construction of the central 6-7-6 core ring system that exists in sugar-fused erinacines by an efficient samarium-mediated radial cyclization was investigated. It was observed that the samarium-mediated 7-endo-trig radial cyclization afforded excellent stereocontrol of the four contiguous asymmetric centers present in the 6-7-6 tricyclic cores of the erinacines E, F and G. The erinacines were isolated from myceria of the fungus Hericium erinaceum as potent simulators of nerve growth factor (NGF) synthesis. The resulting samarium enolate was protonated stereoselectively to afford thermodynamically more stable as a single isomer. The studies constituted a firm basis for synthesis of the sugar-fused erinacine subfamily.

Original languageEnglish
Pages (from-to)2231-2233
Number of pages3
JournalOrganic and Biomolecular Chemistry
Issue number12
Publication statusPublished - 2005 Jun 21


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