Synthesis of Novel, Chiral Bicyclo[3.1.0]hex-2-ene Amino Acid Derivatives as Useful Synthons in Medicinal Chemistry
作者:Heinz Stadler
DOI:10.1002/hlca.201500163
日期:2015.9
A short and concise synthesis of novel, chiral bicyclo[3.1.0]hex‐2‐ene amino acid derivatives 13 and 14 has been developed. The key step is a stereo‐ and regioselective allylic amination of exo‐ and endo‐methyl bicyclo[3.1.0]hex‐2‐ene‐6‐carboxylates 8 and 9, which were prepared from 7,7‐dichlorobicyclo[3.2.0]hept‐2‐en‐6‐one (1). These amino acid derivatives are useful building blocks in medicinal chemistry