Enzymic Asymmetrization of 6-Amino-2-cycloheptene-1,4-diol Derivatives: Synthesis of Tropane Alkaloids (+)- and (-)-Calystegine A3
摘要:
6-Azido and 6-((tert-butyloxycarbonyl)amino)derivatives of meso-2-cycloheptene-1,4-diol were prepared from cycloheptatriene and asymmetrized using Pseudomonas cepacia lipase. Enantiopure intermediates thus prepared were used in the syntheses of both enantiomers of the tropane alkaloid calystegine A(3).
Enzymic Asymmetrization of 6-Amino-2-cycloheptene-1,4-diol Derivatives: Synthesis of Tropane Alkaloids (+)- and (-)-Calystegine A3
摘要:
6-Azido and 6-((tert-butyloxycarbonyl)amino)derivatives of meso-2-cycloheptene-1,4-diol were prepared from cycloheptatriene and asymmetrized using Pseudomonas cepacia lipase. Enantiopure intermediates thus prepared were used in the syntheses of both enantiomers of the tropane alkaloid calystegine A(3).