Enantioselective approach to 7-azabicyclo[2.2.1]heptane ring systems using D-(−)-quinic acid as the chiral educt: Application to the formal synthesis of (+)-epibatidine
作者:Enrichetta Albertini、Achille Barco、Simonetta Benetti、Carmela De Risi、Gian P. Pollini、Vinicio Zanirato
DOI:10.1016/s0040-4039(96)02391-x
日期:1997.1
By utilizing D-(−)-quinic acid as the chiral starting material the optically pure 7-[(1,1-dimethylethoxy)carbonyl]-7-azabicyclo[2.2.1.]heptan-2-one 2, an advanced intermediate already taken to (+)-epibatidine 1, a non-opioid analgesic isolated from Ecuadorian poison frogs, was synthetized through a facile, regioselective intramolecular nucleophilic ring opening of a cyclic sulfate moiety.