Chiral 1,4-dihydropyridine equivalents: a new approach to the asymmetric synthesis of alkaloids. The enantiospecific synthesis of (+)- and (-)-coniine and dihydropinidine
Chiral 1,4-dihydropyridine equivalents: a new approach to the asymmetric synthesis of alkaloids. The enantiospecific synthesis of (+)- and (-)-coniine and dihydropinidine