A simple and efficient synthesis of goniothalesdiol A
摘要:
A concise, simple, and efficient stereoselective total synthesis of goniothalesdiol A starting from commercially available 2-deoxy-D-ribose is described herein using a stereocontrolled Grignard reaction, olefin cross-metathesis, and oxy-Michael addition reactions as the key steps. (C) 2012 Elsevier Ltd. All rights reserved.
A simple and efficient synthesis of goniothalesdiol A
摘要:
A concise, simple, and efficient stereoselective total synthesis of goniothalesdiol A starting from commercially available 2-deoxy-D-ribose is described herein using a stereocontrolled Grignard reaction, olefin cross-metathesis, and oxy-Michael addition reactions as the key steps. (C) 2012 Elsevier Ltd. All rights reserved.
Stereoselective Total Syntheses of Paecilomycins E and F through a Protecting Group Directed Diastereoselective Intermolecular Nozaki-Hiyama-Kishi (NHK) Reaction
作者:Debendra K. Mohapatra、D. Sai Reddy、N. Arjunreddy Mallampudi、Jhillu S. Yadav
DOI:10.1002/ejoc.201402133
日期:2014.8
An efficient and concise approach to the total syntheses of paecilomycins E (1) and F (2) is described. A protecting group directed intermolecular diastereoselective Nozaki–Hiyama–Kishi (NHK) reaction, a Julia–Kocienski olefination, a Sharpless asymmetric dihydroxylation, and De Brabander's lactonization protocol are used as the key steps.
描述了一种有效而简洁的方法来进行 paecilomycins E (1) 和 F (2) 的全合成。保护基团导向的分子间非对映选择性 Nozaki-Hiyama-Kishi (NHK) 反应、Julia-Kocienski 烯化、Sharpless 不对称二羟基化和 De Brabander 的内酯化方案被用作关键步骤。
Total Synthesis of the Resorcylic Lactone-Based Kinase Inhibitor L-783277
作者:Karl-Heinz Altmann、Tatjana Hofmann
DOI:10.1055/s-2008-1078406
日期:2008.6
The total synthesis of the natural product L-783277 (1) has been accomplished based on the convergent assembly of building blocks 9, 10, and 14. Key steps are the Suzuki coupling of olefin 11 and aromatic building block 14, the Mitsunobu-based macrolactonization of seco acid 16, and the allylic oxidation of the macrocyclic triol 2 with polymer-bound IBX. Only one of the two C6′-stereoisomers of 2 provided L-783277 (1) with high selectivity.
作者:Yenamandra Venkateswarlu、Karuturi Rajesh、Vangaru Suresh、Jondoss Jon Paul Selvam、Chitturi Rao
DOI:10.1055/s-0029-1219236
日期:2010.4
efficient stereoselectivetotalsynthesis of cladospolide A, a polyketide natural product, has been achieved. The synthesis involves stereoselective zinc-mediated allylation, pivotal aldol coupling, and ring-closing metathesis. The pivotal aldol coupling is used for the first time for macrolide construction and provides an effective alternative to Yamaguchi macrolactonization. stereoselective synthesis
[EN] IRREVERSIBLE INHIBITORS USEFUL FOR THE TREATMENT OF KINASE-RELATED PATHOLOGIES<br/>[FR] INHIBITEURS IRRÉVERSIBLES UTILISÉS POUR TRAITER DES PATHOLOGIES ASSOCIÉES À UNE KINASE
申请人:UNIV STRASBOURG
公开号:WO2011036299A1
公开(公告)日:2011-03-31
The present invention provides new compounds (I) having a kinase inhibitory activity and useful for treating cancer.
本发明提供了具有激酶抑制活性的新化合物(I),可用于治疗癌症。
A Flexible and Divergent Strategy to Flavonoids with a Chiral A-Ring Featuring Intramolecular Michael Addition: Stereoselective Synthesis of (+)-Cryptocaryone, (+)-Cryptogione F, and (+)-Cryptocaryanones A and B, as Well as (+)-Cryptochinones A and C
cyclization via a highly stereoselective intramolecular Michael addition of 1,3-diketone proceed under mild conditions; thus, the chiral flavonoids bearing C-7 oxy functional groups or olefinic bonds are both easily accessible. Using this approach, the first synthesis of (+)-cryptogione F, (+)-cryptocaryanone B, and (+)-cryptochinones A and C, as well as stereoselectivesynthesis of (+)-cryptocaryone and