A Benzyne Insertion Approach to Hetisine-Type Diterpenoid Alkaloids: Synthesis of Cossonidine (Davisine).
A Benzyne Insertion Approach to Hetisine-Type Diterpenoid Alkaloids: Synthesis of Cossonidine (Davisine).
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DOI:
10.1021/jacs.8b05043
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发表时间:
2018-07-05
影响因子:
15
通讯作者:
Sarpong R
中科院分区:
文献类型:
--
作者:
Kou KGM;Pflueger JJ;Kiho T;Morrill LC;Fisher EL;Clagg K;Lebold TP;Kisunzu JK;Sarpong R
The hetisine-type natural products exhibit one of the most complex carbon skeletons within the diterpenoid alkaloid family. The use of network analysis has enabled a synthesis strategy to access alkaloids in this class with hydroxylation on the A-ring. Key transformations include a benzyne acyl-alkylation to construct a key fused 6–7-6 tricycle, a chemoselective nitrile reduction, and sequential C–N bond formations using a reductive cyclization and a photochemical hydroamination to construct an embedded azabicycle. Our strategy should enable access to myriad natural and unnatural products within the hetisine-type.
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影响因子:
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影响因子:
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通讯作者:
Sarpong R