(3S)-3-BOC-AMINO-1-DIAZO-4-METHYL-2-PENTANONE

methyl (R)-3-(tert-butoxycarbonylamino)-4-methylpentanoate

tert-butyl ((R)-4-methyl-1-oxo-1-((1R,2R,4R)-1,7,7-trimethyl-2-((trimethylsilyl)oxy)bicyclo[2.2.1]heptan-2-yl)pentan-3-yl)carbamate

benzyl N-[1-((p-methylphenyl)sulfonyl)-2-methypropyl]carbamate

benzyl ((R)-4-methyl-1-oxo-1-((1R,2R,4R)-1,7,7-trimethyl-2-((trimethylsilyl)oxy)bicyclo[2.2.1]heptan-2-yl)pentan-3-yl)carbamate