Stereoselective synthesis of four possible isomers of streptopyrrolidine
作者:Debendra K Mohapatra、Barla Thirupathi、Pragna P Das、Jhillu S Yadav
DOI:10.3762/bjoc.7.6
日期:——
The synthesis of (4R,5R)-streptopyrrolidine (1), (4S,5R)-streptopyrrolidine (2) (4R,5S)-streptopyrrolidine (3) and (4S,5S)-streptopyrrolidine (4) have been achieved in a concise and highly efficient manner via a highly stereoselective aldol type reaction with the trimethylsilyl enolate of ethyl acetate and Lewis acid mediated lactamization as the key reactions in approximately 42% yield over six steps