New synthetic routes to (.+-.)-perhydrohistrionicotoxin. Stereoselective synthesis of (6S*, 7S*, 8S*)-7-butyl-8-hydroxy-1-azaspiro(5.5)-undecan-2-one and its (6R*)-isomer.
New synthetic routes to (.+-.)-perhydrohistrionicotoxin. Stereoselective synthesis of (6S*, 7S*, 8S*)-7-butyl-8-hydroxy-1-azaspiro(5.5)-undecan-2-one and its (6R*)-isomer.
A stereoselective synthesis of -(6S,7S,8S) -7-butyl-8-hydroxy-1-azaspiro[5.5]undecan-2-one, a key intermediate for the synthesis of perhydrohistrionicotoxin, was described.