chlorooxoacetic acid isobutyl ester

(2R,4R)-4-amino-5-(2',5'-dichlorobiphenyl-4-yl)-2-hydroxypentanoic acid ethyl ester

tert-butyl (S)-2-((2',5'-dichloro-[1,1'-biphenyl]-4-yl)methyl)-5-oxopyrrolidine-1-carboxylate

(S)-5-((2',5'-dichloro-[1,1'-biphenyl]-4-yl)methyl)pyrrolidin-2-one

(S)-5-((2',5'-dichloro-[1,1'-biphenyl]-4-yl)methyl)-1-pivaloylpyrrolidin-2-one