Preparation of <i>cis</i>-γ-Hydroxycarvone Derivatives for Synthesis of Sesterterpenoid Natural Products: Total Synthesis of Phorbin A
作者:Jonathan G. Hubert、Daniel. P. Furkert、Margaret A. Brimble
DOI:10.1021/jo502748s
日期:2015.2.20
cis-γ-hydroxycarvone derivatives has been developed, enabling efficient access to synthetic building blocks for the growing family of bioactive sesterterpenoid natural products. Using this approach, an allyl bromide carvone derivative was used as the key building block for the totalsynthesis of the natural product phorbin A. This synthetic sequence also demonstrates the utility of benozyl enol ethers as an effective
Biotransformation of geraniol, nerol and (+)- and (−)-carvone by suspension cultured cells of Catharanthus roseus
作者:Hiroki Hamada、Hideaki Yasumune、Yoshihiro Fuchikami、Toshifumi Hirata、Isabel Sattler、Howard J. Williams、A. Ian Scott
DOI:10.1016/s0031-9422(96)00566-3
日期:1997.2
Abstract Suspension cultured cells of Catharanthus roseus hydroxylate the allylic positions of geraniol, nerol and (+)- and (−)-carvone and reduce double bonds and ketone groups. After incubation for 7 days, the main products of (−)- and (+)-carvone were 5β-hydroxyneodihydrocarveol and 5α-hydroxycarvone, respectively.
Enantioselective Total Synthesis of (−)-Pavidolide B
作者:Peng-Peng Zhang、Zhi-Ming Yan、Yuan-He Li、Jian-Xian Gong、Zhen Yang
DOI:10.1021/jacs.7b07388
日期:2017.10.11
The enantioselective synthesis of (-)-pavidolide B (1) was achieved in a linear sequence of 10 steps. The key steps are (a) an enantioselective organocatalytic cyclopropanation; (b) a radical-based cascade annulation for the regio- and diastereo-selective synthesis of the highly functionalized lactone 3 bearing the characteristic tricyclic core and seven contiguous stereocenters;