A short and efficient regioselective approach to the C-6 to C-19 segment of bifurcaranes and a formal total synthesis of β-microbiotene, microbiotol and cyclocuparanol

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A. Srikrishna and S. Anitha Nagamani


Abstract

Employing an epoxide rearrangement based ring contraction reaction, a short and efficient regioselective approach to the C-6 to C-19 segment of the toluquinol substituted diterpenes bifurcaranes, and its extension to a formal total synthesis of the sesquiterpenes (±)-β-microbiotene, (±)-microbiotol and (±)-cyclocuparanol are described.


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