A Benzyne Insertion Approach to Hetisine-Type Diterpenoid Alkaloids: Synthesis of Cossonidine (Davisine)
摘要:
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.
PATONAY, TAMAS;PATONAY-PELI, ERZSEBET;MOGYORODI, FERENC, SYNTH. COMMUN. , 20,(1990) N8, C. 2865-2885
作者:PATONAY, TAMAS、PATONAY-PELI, ERZSEBET、MOGYORODI, FERENC
DOI:——
日期:——
Patonay, Tamas; Patonay-Peli, Erzsebet; Mogyorodi, Ferenc, Synthetic Communications, 1990, vol. 20, # 18, p. 2865 - 2885
作者:Patonay, Tamas、Patonay-Peli, Erzsebet、Mogyorodi, Ferenc
DOI:——
日期:——
A Benzyne Insertion Approach to Hetisine-Type Diterpenoid Alkaloids: Synthesis of Cossonidine (Davisine)
作者:Kevin G. M. Kou、Jason J. Pflueger、Toshihiro Kiho、Louis C. Morrill、Ethan L. Fisher、Kyle Clagg、Terry P. Lebold、Jessica K. Kisunzu、Richmond Sarpong
DOI:10.1021/jacs.8b05043
日期:2018.7.5
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.