作者:M. Khaldi、F. Chrétien、Y. Chapleur
DOI:10.1016/0040-4039(95)00447-k
日期:1995.4
Condensation of substituted O-toluamide anions on to di-O-isopropylidene D-gulono-1,4-lactone followed by intramolecular aldol cyclisation provides 2-aryl-cyclohexenones which were in turn transformed into protected forms of 4a-epi-narciclasine and iso-narciclasine via a reductive amination.