p. 2959 - 2961
(1962)p. 916 - 920
(2012/06/04)p. 8091 - 8094
(2008/02/13)p. 3705 - 3712
(2007/10/02)diethyl 2-amino-3-methylsuccinate
Ethyl 2-bromopropionate
2-acetylaminomalonic acid diethyl ester
diethyl oxalpropionate
ethyl 2-acetamido-2-cyanoacetate