POLYCYCLIC CARBOGENIC MOLECULES AND USES THEREOF AS ANTI-CANCER AGENTS
申请人:Northwestern University
公开号:US20190127306A1
公开(公告)日:2019-05-02
Disclosed are new polycyclic carbogenic molecules and their methods of synthesis. The new polycyclic carbogenic molecules may be utilized in anti-cancer therapies. In particular, the polycyclic carbogenic molecules may be formulated as pharmaceutical compositions that comprise the small molecules, which compositions may be administered in methods of treating and/or preventing cell proliferative diseases and disorders such as cancer. The new polycyclic carbogenic molecules may be prepared from vinyl- or allyl-substituted cyclohexenone precursors via preparation of a silyl bis-enol ether intermediate.
Synthesis of the title compounds by utilizing BF3·Et2O catalyzed ring contraction of 2,3-epoxycyclohexanones leading to 2-alkyl-2-formylcyclopentanones is described.
Enantioselective Preparation of 1,3-Cyclohexadiene and 1,4-Cycloheptadiene Derivatives: Synthesis of (+)-Dictyopterene C′
作者:Morio Asaoka、Katsuhiro Kobayashi、Hisashi Takei
DOI:10.1246/bcsj.67.1141
日期:1994.4
optically active 5-trimethylsilyl-2-cyclohexen-1-one derivatives, the title dienes were synthesized by using silicon-mediated 1,4-elimination as a key step. A straightforward synthesis of the unnatural enantiomer of (−)-dictyopterene C′ utilizing the method was also carried out.
从光学活性 5-trimethylsilyl-2-cyclohexen-1-one 衍生物开始,通过使用硅介导的 1,4-消除作为关键步骤合成了标题二烯。还使用该方法直接合成了 (-)-二萜烯 C' 的非天然对映异构体。
A Strategy for the Convergent and Stereoselective Assembly of Polycyclic Molecules
作者:Emily E. Robinson、Regan J. Thomson
DOI:10.1021/jacs.7b13234
日期:2018.2.7
The stereoselective oxidative coupling of cyclic ketones via silyl bis-enol ethers followed by ring-closing metathesis is shown to be a general and powerful reaction sequence for the preparation of diverse polycyclic scaffolds from simple precursors. The modular strategy successfully constructs substructures prevalent in numerous bioactive natural product families, varying in substitution and carbocyclic
In the BF3·Et2O catalyzed rearrangement of 5-substituted 2,3-epoxycyclohexanones, the stereochemistry of the forming quaternary carbon center was directed by the chirality at 5-position.