Bioinspired Total Synthesis of the Dimeric Indole Alkaloid (+)-Haplophytine by Direct Coupling and Late-Stage Oxidative Rearrangement
Bioinspired Total Synthesis of the Dimeric Indole Alkaloid (+)-Haplophytine by Direct Coupling and Late-Stage Oxidative Rearrangement
复制标题
通过直接偶联和后期氧化重排仿生全合成二聚吲哚生物碱 ( )-单植碱
DOI:
10.1002/anie.201609285
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
H. Tokuyama
中科院分区:
文献类型:
--
作者:
H. Satoh;K. Ojima;H. Ueda;H. Tokuyama
A bioinspired convergent total synthesis of (+)‐haplophytine, a dimeric indole alkaloid with diazabicyclo[3.3.1]nonane and hexacyclic aspidosperma segments, is described. This synthesis involves the direct coupling of the two segments in a AgNTf2‐mediated Friedel–Crafts reaction and construction of the diazabicyclo[3.3.1]nonane skeleton through late‐stage chemoselective aerobic oxidation of the 1,2‐diaminoethene moiety and a sequential semipinacol‐type rearrangement.