Methyl iodide → 2-[5-(2,4-Diaminopyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl]-propan-2-ol

Participants

Reaction Conditions

Reaction Steps

To a solution of methylmagnesium bromide (83.4 mmol, 27.8 ml, 3.0 M in Et2O) in 83 mL THF at 0° C. was added 1-[5-(2,4-diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl]-ethanone (2.523 g, 8.3 mmol, from Example 16) in portions. After 16 h the mixture was cooled to 0° C. and was quenched by the addition 10% NH4Cl. H2O was added and the mixture was extracted with ethyl acetate. The combined organics were washed with H2O, washed with brine, dried over NaHCO3, filtered and concentrated in vacuo. The crude solid was taken up in 31 ml DMF. K2CO3 (0.65 g, 4.7 mmol) and iodomethane (0.098 ml, 1.6 mmol) were added and the mixture was warmed to 50° C. Additional portions of iodomethane (0.019 mL, 0.6 mmol) was added at 1, 2 and 3 hr. After 16 h the mixture was cooled and 10% NH4Cl and extracted with ethyl acetate. The combined organics were washed with H2O, washed with brine, dried with Na2SO4, filtered and concentrated in vacuo to give 2-[5-(2,4-diaminopyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl]-propan-2-ol (0.711 g, yiled) as a white solid. [MH]+=333.

Provenance & Evidence