英文别名4-(1-CYANOCYCLOBUTYLAMINO)-2-FLUORO-N-METHYLBENZAMIDE; Benzamide, 4-[(1-cyanocyclobutyl)amino]-2-fluoro-N-methyl-; Apalutamide Impurity 18; N-Methyl-4-(1-cyanocyclobutylamino)-2-fluorobenzamide; 4-((1-Cyanocyclobutyl)amino)-2-fluoro-N-methylbenzamide; ARN-509 intermediate 2