Total synthesis of the pyranoisoflavone kraussianone 1 and related isoflavones

…, SE Drewes, FR van Heerden

Index: Selepe, Mamoalosi A.; Drewes, Siegfried E.; Van Heerden, Fanie R. Journal of Natural Products, 2010 , vol. 73, # 10 p. 1680 - 1685

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Citation Number: 18

Abstract

The first total synthesis of the pyranoisoflavone kraussianone 1 (1) is described. The key steps involved the Suzuki− Miyaura reaction for the construction of the isoflavone core and the regioselective formation of the dimethylpyran scaffolds to the phloroglucinol (ring A) and resorcinol (ring B) moieties of kraussianone 1 (1). This route also provided access to the related isoflavones eriosemaone D (2) and genistein (3) via simple structural ...