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Catalytic enantioselective total synthesis of (+)-eucomic acid
被引:11
|作者:
Estipona, Benzi I.
[1
]
Pritchett, Beau P.
[1
]
Craig, Robert A., II
[1
]
Stoltz, Brian M.
[1
]
机构:
[1] CALTECH, Warren & Katharine Schlinger Lab Chem & Chem Engn, 1200 E Calif Blvd,MC 101-20, Pasadena, CA 91125 USA
来源:
基金:
美国国家卫生研究院;
关键词:
Allylic alkylation;
Enantioselective;
Eucomic acid;
Palladium;
Total synthesis;
HARRINGTONIA VAR DRUPACEA;
(R)-EUCOMIC ACID;
DERIVATIVES;
(+)-DRAGMACIDIN-F;
ALKYLATION;
COMPLEXES;
ALKALOIDS;
D O I:
10.1016/j.tet.2016.02.059
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
A catalytic enantioselective synthesis of (+)-eucomic acid is reported. A palladium-catalyzed asymmetric allylic alkylation is employed to access the chiral tetrasubstituted alpha-hydroxyacid moiety found in the natural product. The protecting group strategy was investigated, and a protecting group manipulation was made without any appreciable deleterious effects in the allylic alkylation reaction. Non-natural (+)-eucomic acid is synthesized in a longest linear sequence of 13 steps. (C) 2016 Elsevier Ltd. All rights reserved.
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页码:3707 / 3712
页数:6
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