1.
Org Biomol Chem
; 12(36): 7068-82, 2014 Sep 28.
Artigo
em Inglês
| MEDLINE
| ID: mdl-25087489
RESUMO
A practical one-pot synthesis of nicotine analogs from Ugi 4-CR/propargyl adducts is reported. This methodology allows the rapid construction of the pyrrolidine moiety present in nicotine through an intramolecular base-promoted 5-endo cycloisomerization process, followed by a reduction of the resulting mixture of 2- and 3-pyrrolines to afford nicotine analogs in good overall yields.