A Gram-Scale Batch and Flow Total Synthesis of Perhydrohistrionicotoxin
作者:Malte Brasholz、James M. Macdonald、Simon Saubern、John H. Ryan、Andrew B. Holmes
DOI:10.1002/chem.201001435
日期:——
The totalsynthesis of the spiropiperidine alkaloid (−)‐perhydrohistrionicotoxin (perhydro‐HTX) 2 has been accomplished on a gram scale by employing both conventional batch chemistry as well as microreactor techniques. (S)‐(−)‐6‐Pentyltetrahydro‐pyran‐2‐one 8 underwent nucleophilicringopening to afford the alcohol 10, which was elaborated to the nitrone 13. Protection of the nitrone as the 1,3‐adduct