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(2007/10/03)(S)-2-Benzyloxycarbonylamino-4-(tert-butoxycarbonylmethyl-methyl-carbamoyl)-butyric acid tert-butyl ester
α-tert-butyl N-(benzyloxycarbonyl)-N-methylglycinate
(S)-2-(benzyloxycarbonylamino)pentanedioic acid tert-butyl ester
sarcosine tert-butyl ester
4-