Synthesis of the left-hand portion of geldanamycin using an anti glycolate aldol reaction

被引:38
作者
Andrus, MB [1 ]
Meredith, EL [1 ]
Sekhar, BBVS [1 ]
机构
[1] Brigham Young Univ, Dept Chem & Biochem, Provo, UT 84602 USA
关键词
D O I
10.1021/ol0068997
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
[GRAPHICS] A synthesis of the left hand portion of the ansamycin antitumor natural product geldanamycin is reported. An advanced intermediate incorporates the methoxyquinone precursor as a pentasubstituted benzene with a 10-carbon chain that contains 4 of the 6 stereocenters. The key reaction is a novel anti glycolate aldol reaction with a new diaryl-4-oxapyrone used to generate the C-11, C-12 hydroxy, methoxy functionality.
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页码:259 / 262
页数:4
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