p. 5517 - 5520
(2012/07/27)(S)-tert-butyl 3-(((benzyloxy)carbonyl)amino)-4-oxo-5-(2,3,5,6-tetrafluoro phenoxy)pentanoate
(S)-3-benzyloxycarbonylamino-5-bromo-4-oxo-pentanoic acid tert-butyl ester
Z-Asp(OBut)-CHN2
(S)-3-Benzyloxycarbonylamino-4-isobutoxycarbonyloxy-4-oxo-butyric acid tert-butyl ester
Z-D(tBu)-OH