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Note | Special issue | Vol 82, No. 2, 2010, pp.1719-1726
Published online, 30th September, 2010
DOI: 10.3987/COM-10-S(E)118
Structures of Fukinone Epoxides. Configuration, Conformation, and CD Spectra

Yoshinori Saito and Motoo Tori*

*Faculty of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihamabouji, Yamashiro-machi, Tokushima, 770-8514, Japan

Abstract

The configuration and conformation of two diastereoisomeric fukinone epoxides were unambiguously established by NMR (NOESY), CD, and X-ray crystallographic analyses of their derivatives. The data show the absolute configurations of exo α,β-epoxy ketones can be predicted by an octant rule, not by a Reverse Octant Rule.