530102-41-1Relevant articles and documents
Cyclobutane amino acids (CBAAs): Asymmetric Strecker synthesis of enantiopure cis- and trans-2,4-methanovalines
Volk, Franz-J.,Wagner, Marita,Frahm, August W.
, p. 497 - 502 (2007/10/03)
Synthesis of enantiopure 2,4-methanovalines has been achieved by means of asymmetric Strecker synthesis starting from racemic 2-methylcyclobutanone. The trans-configured α-amino acids were obtained from cyanide additions carried out in methanol, whereas the cis-configured 2,4-methanovalines were accessible via reactions in hexane. Relative stereochemistry was elucidated from NOESY experiments, while absolute configurations were assigned from X-ray crystallographic analysis.