Step-Economical Synthesis of the Marine Ascidian Antibiotics Cadiolide A, B, and D

被引:28
作者
Boukouvalas, John [1 ]
Thibault, Charles [1 ]
机构
[1] Univ Laval, Dept Chim, Quebec City, PQ G1V 0A6, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
EFFICIENT SYNTHESIS; VANCOMYCIN RESISTANCE; SELECTIVE SYNTHESIS; RUBROLIDES C; SYNOICUM; FACILE; KNOEVENAGEL; ACID; METABOLITES; INHIBITION;
D O I
10.1021/jo502503w
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A concise, modular and efficient synthesis of the title natural products is reported. Prominent steps include (i) one-pot assembly of a key beta-aryl-alpha-benzoylbutenolide building block by regiocontrolled click-unclick oxazole-ynone Diels-Alder cycloaddition/cycloreversion and ensuing 2-alkoxyfuran hydrolysis and (ii) a protecting group-free vinylogous Knoevenagel condensation enabling rapid access to cadiolides A, B, and D from a common precursor.
引用
收藏
页码:681 / 684
页数:4
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