Enantioselective synthesis of oasomycin A, part III: Fragment assembly and confirmation of structure

被引:16
|
作者
Evans, David A. [1 ]
Nagorny, Pavel [1 ]
McRae, Kenneth J. [1 ]
Sonntag, Louis-Sebastian [1 ]
Reynolds, Dominic J. [1 ]
Vounatsos, Filisaty [1 ]
机构
[1] Harvard Univ, Dept Chem & Biol Chem, Cambridge, MA 02138 USA
关键词
aldol reaction; Kocienski-Julia olefination; macrolactonization; natural products; total synthesis;
D O I
10.1002/anie.200603652
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Chemical Equation Presented) Putting the pieces together: The total synthesis of the natural macrolide oasomycin A has been realized. Key fragment couplings include an anti-Felkin selective aldol addition (green), Kociensky-Julia olefinations (red), and competitive Weinreb amide acylation reaction (blue). The utility of the 4,5-diphenyloxazole as a carboxy surrogate and the late-stage macrolactonization affording the 42-membered macrocycle of oasomycin A are also described. © 2007 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:545 / 548
页数:4
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