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Stereoselective Synthesis of the Epicoccin Core
被引:23
|作者:
Gross, Ulrike
[1
]
Nieger, Martin
[2
]
Braese, Stefan
[1
]
机构:
[1] Karlsruhe Inst Technol, Inst Organ Chem, Karlsruhe, Germany
[2] Univ Helsinki, Inorgan Chem Lab, FIN-00014 Helsinki, Finland
关键词:
ONE-POT SYNTHESIS;
UNPROTECTED AMINO-ACIDS;
GLIOTOXIN;
ANALOGS;
D O I:
10.1021/ol901919c
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
A short, convergent, and asymmetric synthesis of the epicoccin core was achieved using a phosphite-promoted one-step condensation of a complex proline-type amino acid. Key features of the assembly of this amino acid were a double-bond isomerization/vinylation/ring-closing metathesis strategy as well as an efficient, highly diastereoselective [2 + 2] cycloaddition of a ketene to an enecarbamate, derived from L-pyroglutamic acid.
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页码:4740 / 4742
页数:3
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