(S)-3-amino-3-(5-bromo-2-fluoro-phenyl)-2,2-dimethyl-butyric acid methyl ester 、
N-BOC-N'-甲基硫脲 以the product [(S)-4-(5-bromo-2-fluoro-phenyl)-1,4,5,5-tetramethyl-6-oxo-1,4,5,6-tetrahydro-pyrimidin-2-yl]-carbamic acid tert-butyl ester was obtained as a white solid的产率得到[(S)-4-(5-bromo-2-fluoro-phenyl)-1,4,5,5-tetramethyl-6-oxo-1,4,5,6-tetrahydro-pyrimidin-2-yl]-carbamic acid tert-butyl ester