p. 7440 - 7449
(2007/10/03)(2S,3S)-1-((3S,4S)-1-(butylamino)-3-hydroxy-6-methyl-1-oxo-heptan-4-ylamino)-3-methyl-1-oxopentan-2-ylcarbamic acid tert-butyl ester
4(S)-t-butoxycarbonylamino-N-butyl-3(S)-hydroxy-6-methylheptanamide
4-(4-(benzyloxycarbonyl)phenoxy)benzoic acid
tert-butoxycarbonyl-L-leucinal
(3S,4S)-ethyl 4-(tert-butoxycarbonylamino)-3-hydroxy-6-methylheptanoate