Switchable Synthesis of <i>Z</i>
-Homoallylic Boronates and <i>E</i>
-Allylic Boronates by Enantioselective Copper-Catalyzed 1,6-Boration
作者:Yunfei Luo、Steven M. Wales、Stamatis E. Korkis、Iain D. Roy、William Lewis、Hon Wai Lam
DOI:10.1002/chem.201801804
日期:2018.6.12
The enantioselective Cu‐catalyzed 1,6‐boration of (E,E)‐α,β,γ,δ‐unsaturated ketones is described, which gives homoallylic boronates with high enantiomeric purity and unexpectedly high Z‐selectivity. By changing the solvent, the outcome can be altered to give E‐allylic boronates.
[EN] BRYOSTATIN ANALOGUES, SYNTHETIC METHODS AND USES<br/>[FR] ANALOGUES DE LA BRYOSTATINE, PROCÉDÉS DE SYNTHÈSE ET UTILISATIONS
申请人:UNIV LELAND STANFORD JUNIOR
公开号:WO2009052507A1
公开(公告)日:2009-04-23
Biologically active compounds related to the bryostatin family of compounds, having simplified spacer domains and/or improved recognition domains are disclosed, including methods of preparing and utilizing the same.
Total Synthesis of Bryostatins: The Development of Methodology for the Atom-Economic and Stereoselective Synthesis of the Ring C Subunit
作者:Barry M. Trost、Alison J. Frontier、Oliver R. Thiel、Hanbiao Yang、Guangbin Dong
DOI:10.1002/chem.201002898
日期:2011.8.22
for the stereoselective assembly of the ring C subunit were developed. A Pd‐catalyzed tandem alkyne–alkyne coupling/6‐endo‐dig cyclization sequence was explored and successfully pursued in the synthesis of a dihydropyran ring system. Elaboration of this methodology ultimately led to a concise synthesis of the ring C subunit of bryostatins.
苔藓抑素是一个结构复杂的大环内酯类,表现出异常广泛的生物活性。这些分子的有限可用性和结构复杂性使得开发有效的全合成尤为重要。本文描述了我们对苔藓抑素全合成的初步努力,其中开发了用于环 C 亚基立体选择性组装的化学选择性和原子经济方法。在二氢吡喃环系统的合成中探索并成功地探索了Pd 催化的串联炔 - 炔偶联/6- endo - dig环化序列。这种方法的详细说明最终导致了苔藓抑素环 C 亚基的简明合成。
Formal Synthesis of Actin Binding Macrolide Rhizopodin
作者:Kiran Kumar Pulukuri、Tushar Kanti Chakraborty
DOI:10.1021/ol5008179
日期:2014.4.18
Formal synthesis of an actin binding macrolide rhizopodin was achieved in 19 longest linear steps. The key features of the synthesis include a stereoselective Mukaiyama aldol reaction, dual role of a Nagao auxiliary (first, as a chiral auxiliary of choice for installing hydroxy centers and, later, as an acylating agent to form an amide bond with an amino alcohol), late stage oxazole formation, and