4.5 Article

Enantioselective Synthesis of Glutarimide Alkaloids Cordiarimides A, B, Crotonimides A, B, and Julocrotine

Journal

CHINESE JOURNAL OF CHEMISTRY
Volume 29, Issue 7, Pages 1312-1318

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/cjoc.201180248

Keywords

glutarimides; alkaloids; asymmetric hydrogenation; diastereoselectivity; enantioselective synthesis

Funding

  1. National Natural Science Foundation of China [20832005]
  2. National Basic Research Program (973 Program) of China [2010CB833200]

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Five glutarimide alkaloids cordiarimide A (5), cordiarimide B (6), crotonimide A (3), crotonimide B (4), and julocrotine (2) have been synthesized starting from Boc-L-glutamine (7). The benzylic alcohol chiral centre of cordiarimides B (6) has been established in 6 : 1 diastereoselectivity by catalytic asymmetric hydrogenation using Zhou's catalytic system Pd(CF3CO2)(2)/(R,R)-Me-DuPhos.

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