A Practical Synthesis of m-Prostaglandin E Synthase-1 Inhibitor MK-7285

被引:26
作者
Gosselin, Francis [1 ]
Lau, Stephen [1 ]
Nadeau, Christian [1 ]
Trinh, Thao [1 ]
O'Shea, Paul D. [1 ]
Davies, Ian W. [2 ]
机构
[1] Merck Frosst Ctr Therapeut Res, Dept Proc Res, Kirkland, PQ H9H 3L1, Canada
[2] Merck Res Labs, Dept Proc Res, Rahway, NJ 07065 USA
关键词
PALLADIUM-CATALYZED CYANATION; CROSS-COUPLING LINKS; ARYL HALIDES; AROMATIC METALATION; DIRECT ARYLATION; REGIOSPECIFIC SYNTHESIS; EXCHANGE; BROMIDES; 1,3-DIBROMO-5,5-DIMETHYLHYDANTOIN; DERIVATIVES;
D O I
10.1021/jo901798d
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A practical, kilogram-scale chromatography-free synthesis of mPGE synthase I inhibitor MK-7285 is described. The route features a convergent assembly of the core phenanthrene unit via amide-directed ortho-metalation and proximity-induced anionic cyclization, followed by imidazole synthesis and late-stage cyanation.
引用
收藏
页码:7790 / 7797
页数:8
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