p. 2277
(1970)p. 9985 - 9989
(2019/12/24)p. 9415 - 9421
(2016/10/17)p. 1208 - 1209
(2007/10/02)p. 1187 - 1190
(2007/10/02)dimethyl aspartate
3-bromo-4-methoxy-4-oxobutanoic acid
dimethyl 2-bromosuccinate
dimethyl 2-acetylsuccinate
methyl 2-nitroacetate