ethyl 4-azido-2-(hydroxymethyl)-5-methylpyrimidine-6-carboxylate

Nα-(tert-butoxycarbonyl)-Nβ-[1-amino-3(S)-(4-amino-6-carboxy-5-methylpyrimidin-2-yl)propion-3-yl]-(S)-β-aminoalanine tert-butyl ester

Nα-(tert-butoxycarbonyl)-Nβ-[1-amino-3(S)-(4-amino-6-carboethoxy-5-methylpyrimidin-2-yl)propion-3-yl]-(S)-β-aminoalanine tert-butyl ester

6-amino-4-(ethoxycarbonyl)-5-methylpyrimidine-2-carboxaldehyde

2-[1-((S)-2-tert-Butoxycarbonylamino-2-carbamoyl-ethylamino)-2-tert-butylsulfanylcarbonyl-ethyl]-6-chloro-5-methyl-pyrimidine-4-carboxylic acid