Indirect trapping of the retroconjugate addition reaction intermediate involved in the epimerization of lobeline: application to the synthesis of (-)-sedamine.
Zheng G, Dwoskin LP, Crooks PA. Indirect trapping of the retroconjugate addition reaction intermediate involved in the epimerization of lobeline: application to the synthesis of (-)-sedamine. J Org Chem. 2004 Nov 26; 69(24):8514-7.