2-(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)-5-nitro-phenylamine

(S)-N-((1S)-1-(4-(2,4-diaminophenyl)pyridin-2-yl)but-3-en-1-yl)-2-methylpropane-2-sulfinamide

methyl (3-amino-4-(2-((S)-1-((S)-1,1-dimethylethylsulfinamido)but-3-en-1-yl)pyridin-4-yl)phenyl)carbamate

(S)-methyl 3-amino-4-(2-(1-aminobut-3-enyl)pyridin-4-yl)phenylcarbamate