ChemInform Abstract: Concise Synthesis of Enantiomerically Pure (1′S, 2′R)‐ and (1′R, 2′S)‐2S‐Amino‐3‐(2′‐aminomethyl‐cyclopropyl)propionic Acid: Two E‐Diastereoisomers of 4, 5‐Methano‐L‐lysine. Issue 9 (4th March 2014)