p. 245 - 251
(2015/02/02)p. 4309 - 4316
(2009/12/06)di-tert-butyl dicarbonate
methyl (2S)-2-{(tert-butoxy)-N-[(tert-butyl)oxycarbonyl]carbonylamino}-4-oxobutanoate
dimethyl N-tert-butoxycarbonyl-L-aspartate
methyl (2S)-2-[(tert-butoxy)carbonylamino]-4-oxobutanoate
dimethyl (2S)-2-{(tert-butoxy)-N-[(tert-butyl)oxycarbonyl]carbonylamino}butanedioate