Total synthesis of (S)-(-)-(E)-15,16-dihydrominquartynoic acid:: A highly potent anticancer agent

被引:41
作者
Gung, BW [1 ]
Kumi, G [1 ]
机构
[1] Miami Univ, Dept Chem & Biochem, Oxford, OH 45056 USA
关键词
D O I
10.1021/jo049920g
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The conjugated entriyne natural product, (S)-(E)-15,16-dihydrominquartynoic acid (1), is synthesized in five linear steps and 30% overall yield from the known aldehyde 11. The key step is a one-pot in situ desilylation/Cadiot-Chodkiewiez coupling reaction affording the entriyne unit. The bromoalkyne 6 with an omega-carboxylic acid group was found to undergo a copper-catalyzed cross-coupling reaction producing the desired diyne intermediate 10, while the corresponding omega-ester bromoalkyne 14 failed to couple with triethylsilylacetylene under a variety of conditions.
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页码:3488 / 3492
页数:5
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