Abstract

Abstract The unified synthesis of the NOPQ and STUV rings of brevisulcenal-F was achieved from a common intermediate based on a convergent strategy via two-ring construction. The STUV ring was synthesized via radical reduction of an O, S-acetal, and the NOPQ ring was constructed via ring expansion giving a seven-membered ring ketone, methylation of an O, S-acetal, and introduction of the cis-1,2-diol moiety at C60–C61.

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