Reagents and conditions: (a)
4 N HCl in dioxane; (b) 2-chloro-5-methoxymethylpyrimidine,
Cs2CO3, DMSO, 60 °C, 76%; (c) NaH, 4-bromo-1-(bromomethyl)-2-fluorobenzene,
DMF, 96%.; (d) BrZnCH2COOtBu,
Pd2(dba)3, X-Phos, THF, 60 °C, 98%; (e)
TFA, dichloromethane, 100%; (f) morpholine, HOBT, EDC, diisopropylethylamine,
dichloromethane, 69%.