(S,S)-1-benzyl-3-(2-methoxycarbonylamino-3-methylbutyryl)imidazolidine-4-carboxlic acid methyl ester
(S,S)-3-(2-methoxycarbonylamino-3-methylbutyryl)-1-(2,2,2-trifluoroethyl)imidazolidine-4-carboxlic acid methyl ester
(S,S)-3-(2-methoxycarbonylamino-3-methylbutyryl)imidazolidine-1,4-dicarboxlic acid 1-tert-butyl ester 4-methyl ester
α-amino-4-bromoacetophenone hydrochloride