A New Procedure for Construction of 2,6-trans-Disubstituted Piperidines Using Osmium-catalyzed Asymmetric Dihydroxylation: Application to the Synthesis of (+)-Epidihydropinidine and (+)-Solenopsin A1
摘要:
An asymmetric synthesis of (+)-epidihydropinidine (1) and (+)-solenopsin A (2) has been achieved by starting with the Sharpless asymmetric dihydroxylation of the alpha-amino acid-derived N-alkenylurethanes (3) followed by subsequent aminocyclization.
A chirospecificsynthesis of thecis-2,6-dialkylpieperidine alkaloids1 and2 has been achieved in eight steps (23%) and six steps (32%) from the known iodide3, respectively.
A New Procedure for Construction of 2,6-trans-Disubstituted Piperidines Using Osmium-catalyzed Asymmetric Dihydroxylation: Application to the Synthesis of (+)-Epidihydropinidine and (+)-Solenopsin A1
An asymmetric synthesis of (+)-epidihydropinidine (1) and (+)-solenopsin A (2) has been achieved by starting with the Sharpless asymmetric dihydroxylation of the alpha-amino acid-derived N-alkenylurethanes (3) followed by subsequent aminocyclization.