A Synthesis of a C1-C7 Building Block for the Enantiomer of Hennoxazole A Utilizing a Regioselective Ring Opening of a Cyclic Acetal
作者:Takayuki Shioiri、Nigel McFarlane、Yasumasa Hamada
DOI:10.3987/com-97-s(n)7
日期:——
AC(1)-C-7 building block (4) for the enantiomer of hennoxazole A (1), an antivirus and analgesic active marine natural product, was efficiently synthesized from (S)-malic acid utilizing the following key steps: (1) the stereoselective construction of an anti-1,3-diol, (2) the regioselective ring opening of a cyclic acetal, and (3) the oxidative transformation of the olefin into the ketal of the methyl ketone in a one-pot process.