1 FFV N~2~-(3-chloro-4-fluorophenyl)-N~4~-[(1r)-1-cyclopropylethyl]quinazoline-2,4-diamine 1.000 2 FFY N~2~-(3-chloro-4-fluorophenyl)-N~4~-[(1r)-1-cyclopropylethyl]-8-(1,2,3,6-tetrahydropyridin-4-yl)quinazoline-2,4-diamine 0.806 3 FFS N~2~-(3-chlorophenyl)-N~4~-[(furan-2-yl)methyl]quinazoline-2,4-diamine 0.786