1315314-36-3Relevant articles and documents
Total syntheses of (-) epilupinine and (-)-tashiromine using imino-aldol reactions
Cutter, Amanda C.,Miller, Iain R.,Keily, John F.,Bellingham, Richard K.,Light, Mark E.,Brown, Richard C. D.
, p. 3988 - 3991 (2011/09/16)
Short routes to enantiomerically pure indolizidine and quinolizidine alkaloids have been developed using imino-aldol reactions of enolates derived from phenyl 5-chlorovalerate. High levels of syn selectivity (dr ~13-16:1) were obtained using lithium enolates of phenyl esters in combination with tert-butylsulfinyl imines. The imino-aldol adducts were deprotected and cyclized to afford (-)-epilupinine ((-)-2) and (-)-tashiromine ((-)-1) in two further steps.