First asymmetric synthesis of the Kelatorphan-like enkephalinase inhibitor (1S,2R,2′S )-2-[2′-(N-hydroxycarbamoylmethyl)-3′-phenylpropionylamino]cyclohexane-1-carboxylic acid
作者:Stephen G. Davies、Darren J. Dixon
DOI:10.1039/a804660c
日期:——
The first asymmetric synthesis of Kelatorphan-like enkephalinase inhibitor (1S,2R,2′S)-2-[2′-(N-hydroxycarbamoylmethyl)-3′-phenylpropionylamino]cyclohexane-1-carboxylic acid is achieved using lithium amide (R)-5 and pyrrolidinone auxiliary (R)-6; the pyrrolidinone auxiliary is used to create (2S)-benzylsuccinic acidderivative (S)-4 while lithium amide (R)-5 is used to synthesize tert-butyl (1S,2R