描述了 (-)-Nardoaristolone B 的立体选择性全合成,它是一种具有不寻常的 3/5/6 三环系统的去甲马兜铃倍半萜类天然产物。目前工作的亮点包括使用 (+)-(R)-Pulegone 作为手性池起始材料、闭环复分解、烯丙基氧化和立体选择性环丙烷化。此外,Nardoaristolone B 的新类似物(来自最后一步的次要产物)以纯形式分离出来,并在单晶 X 射线分析的帮助下进行了充分表征。
Enantioselective Total Synthesis of (−)-Nardoaristolone B via a Gold(I)-Catalyzed Oxidative Cyclization
作者:Anna Homs、Michael E. Muratore、Antonio M. Echavarren
DOI:10.1021/ol503531n
日期:2015.2.6
The first enantioselective total synthesis of (−)-nardoaristolone B is accomplished by the implementation of an enantio- and diastereoselective copper(I)-catalyzed conjugate addition/enolate trapping sequence and a gold(I)-catalyzed oxidative cyclization (intermolecular oxidant), employed for the first time in total synthesis.
TRICYCLIC COMPOUNDS AND PROCESS FOR PREPARATION THEREOF
申请人:Council of Scientific and Industrial Research
公开号:US20170233324A1
公开(公告)日:2017-08-17
The present invention discloses tricyclic compounds of formula (I) or salt thereof and their process for synthesis. Further, the present invention relates to the use of these novel tricyclic compounds of formula (I) or salt thereof as insect repellents.
US9950983B2
申请人:——
公开号:US9950983B2
公开(公告)日:2018-04-24
A Total Synthesis of (-)-Nardoaristolone B
作者:Rohini S. Ople、Kishor L. Handore、Nidhi S. Kamat、D. Srinivasa Reddy
DOI:10.1002/ejoc.201600538
日期:2016.8
stereoselective totalsynthesis of (–)-Nardoaristolone B, a nor-aristolane sesquiterpenoid natural product with an unusual 3/5/6 tricyclic ring system is described. The highlights of the present work includes use of (+)-(R)-Pulegone as a chiral-pool starting material, ring-closing metathesis, allylic oxidation and stereoselective cyclopropanation. In addition, a new analogue of Nardoaristolone B (minor product
描述了 (-)-Nardoaristolone B 的立体选择性全合成,它是一种具有不寻常的 3/5/6 三环系统的去甲马兜铃倍半萜类天然产物。目前工作的亮点包括使用 (+)-(R)-Pulegone 作为手性池起始材料、闭环复分解、烯丙基氧化和立体选择性环丙烷化。此外,Nardoaristolone B 的新类似物(来自最后一步的次要产物)以纯形式分离出来,并在单晶 X 射线分析的帮助下进行了充分表征。