p. 3294 - 3302
(2007/10/02)(S)-2-Benzyloxycarbonylamino-pentanedioic acid 5-methyl ester
acetic acid tert-butyl ester
L-aspartic acid di-tert-butyl ester
(S)-2-(benzyloxycarbonylamino)pentanedioic acid tert-butyl ester
L-aspartic acid di-tert-butyl ester hydrochloride