tert-butyl (R)-(4-((4-((2-hydroxy-1-phenylethyl)carbamoyl)-2-((7-isopropylpyrido[2,3-d]pyrimidin-4-yl)amino)phenyl)thio)phenyl)carbamate

(R)-4-((4-aminophenyl)thio)-N-(2-hydroxy-1-phenylethyl)-3-((7-isopropylpyrido[2,3-d]pyrimidin-4-yl)amino)benzamide

(S)-4-((4-aminophenyl)thio)-N-(3-hydroxy-1-phenylpropyl)-3-((7-isopropylpyrido[2,3-d]pyrimidin-4-yl)amino)benzamide