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Communication | Special issue | Vol 82, No. 1, 2010, pp.319-323
Published online, 29th July, 2010
DOI: 10.3987/COM-10-S(E)91
Enantioselective Synthesis of the C(2)-C(11) Cyclopropylfuran Segment of Pinnatin A

Masayoshi Tsubuki,* Terunobu Abekura, Kazunori Takahashi, and Toshio Honda*

*Research Centre of Medicinal Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan

Abstract

Synthesis of the C(2)-C(11) segment, cyclopropylfuran derivative, of pinnatin A was accomplished by Suzuki cross-coupling between chiral cyclopropylboronic acid and bromofuran as a key step. Addition of silver (I) oxide was found to promote the Suzuki cross-coupling reactions.