ChemInform Abstract: Diastereoselective Synthesis of 5‐Iminooxazolines and Their Subsequent Transformation to α, α‐Disubstituted Dipeptide Esters: A Formal [4 + 1] Cycloaddition Reaction of Cyclohexyl Isocyanide and Z‐Alkyl‐α‐benzoyl Amino‐Acrylates. Issue 5 (13th February 2013)