Total Synthesis of (−)-Histrionicotoxin 285A and (−)-Perhydrohistrionicotoxin
作者:James M. Macdonald、Helen T. Horsley、John H. Ryan、Simon Saubern、Andrew B. Holmes
DOI:10.1021/ol801604z
日期:2008.10.2
Starting from commercially available ( S)-glycidol, and via a common intermediate, the total synthesis of (-)-histrionicotoxin 285A and (-)-perhydrohistrionicotoxin has been achieved. Key to this synthesis was the efficient construction of a six-membered, chiral, cyclic nitrone.
Total Synthesis and Electrophysiological Properties of Natural (?)-Perhydrohistrionicotoxin, its Unnatural (+)-Antipode and their 2-Depentyl Analogs
作者:Kimio Takahashi、Bernhard Witkop、Arnold Brossi、Mohammed A. Maleque、Edson X. Albuquerque
DOI:10.1002/hlca.19820650125
日期:1982.2.3
Natural (−)-perhydrohistrionicotoxin (6a), its unnatural (+)-antipode 6b, (−)-2-depentylperhydrohistrionicotoxin (7a) and its (+)-antipode 7b have been prepared and characterized. Kishi's lactam 8 reacted with optically active iso-cyanates, and the mixture of diastereomeric carbamates so obtained was separated and hydrolyzed yielding the optical antipodes of Kishi's lactam in optically pure form. Reduction