Synthesis of a Cn–Cn+6 Building Block Common to Important Polyol,Polyene Antibiotics from a Divinylcarbinol by a Desymmetrizing Sharpless Epoxidation
Synthesis of a Cn–Cn+6 Building Block Common to Important Polyol,Polyene Antibiotics from a Divinylcarbinol by a Desymmetrizing Sharpless Epoxidation
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通过去对称 Sharpless 环氧化从二乙烯基甲醇合成重要多元醇、多烯抗生素所共有的 Cn–Cn+6 结构单元
DOI:
10.1002/ejoc.201300181
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发表时间:
2013
影响因子:
2.8
通讯作者:
R. Brückner
中科院分区:
文献类型:
--
作者:
Luc Nachbauer;R. Brückner
A stereocontrolled synthesis of the enantiomerically pure epoxide 7b from propargyl ether 15 has been realized in 15 steps. Epoxide 7b represents a building block for the “eastern” moieties of the title compounds. Key steps in our approach were a desymmetrizing Sharpless epoxidation ( anti,cis-16), the selective processing of the bis-enolate of the bis(tert-butyl alkoxyacetate) 11 through a diastereoselective [2,3]-Wittig rearrangement ( syn,syn-9), and a stereo- and chemoselective iodolactonization ( 35). The CO2H groups of dicarboxylic acid 37 were differentiated in a one-pot bis-oxidation reaction. The latter entailed the novel transformation of HO2CCH2-O-alkyl into AcOCH2-O-alkyl.
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影响因子:
15
作者:
Evans, DA;Connell, BT
通讯作者:
Connell, BT
DOI:
10.1073/pnas.0401552101
发表时间:
2004-08-17
影响因子:
11.1
作者:
Kadota, I;Hu, YQ;Rychnovsky, SD
通讯作者:
Rychnovsky, SD
影响因子:
15
作者:
Han SB;Hassan A;Kim IS;Krische MJ
通讯作者:
Krische MJ
影响因子:
15
作者:
Palacios, Daniel S.;Anderson, Thomas M.;Burke, Martin D.
通讯作者:
Burke, Martin D.
影响因子:
5.2
作者:
White,JamesD;Wang,Guoqiang;Quaranta,Laura
通讯作者:
Quaranta,Laura