期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 71, 期 15, 页码 5674-5678出版社
AMER CHEMICAL SOC
DOI: 10.1021/jo060717q
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The key transformation in the total synthesis of (+)-elaeokanine A was accomplished by asymmetric deprotonation of N-Boc pyrrolidine, followed by the reaction of the in situ generated enantioenriched stereogenic cuprate reagent with (E)-4-bromo-1-iodo-1-trimethylsilyl-1-butene with retention of configuration. N-Boc deprotection, followed by a one-pot olefin isomerization and intramolecular amine alkylation afforded a bicyclic vinyl bromide that was converted into (+)-elaeokanine A by sequential halogen metal exchange and reaction of the organolithium reagent with N-butanoylmorpholine.
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