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1-(4-(Aminomethyl)phenyl)urea hydrochloride

Tert-butyl (4-(3-methylureido)benzyl)carbamate

Tert-butyl (4-(3,3-dimethylureido)benzyl)carbamate

3-(4-(Aminomethyl)phenyl)-1,1-dimethylurea hydrochloride

Tert-butyl (3-((2-ethoxy-3,4-dioxocyclobut-1-en-1-yl)amino)benzyl)carbamate

Tert-butyl (3-((2-amino-3,4-dioxocyclobut-1-en-1-yl)amino)benzyl)carbamate

Benzyl (5-cyano-2-fluorophenyl)carbamate

Benzyl (5-(((tert-butoxycarbonyl)amino)methyl)-2-fluorophenyl)carbamate

Benzyl (5-cyano-2-fluorobenzyl)carbamate

Benzyl (5-(((tert-butoxycarbonyl)amino)methyl)-2-fluorobenzyl)carbamate