Synthesis and Structural Characterization of 1,5-Dimethyl-2-( S)-(1′-phenylethyl)-2-aza-8-oxa-bicyclo[3.3.0]octane-3,7-dione
HU, Bing-Cheng, LÜ, Chun-Xu
Chinese Journal of Organic Chemistry . 2004, (6): 697 -701 .