反应详情

Hydroxymethylcyclopropane (0.17 g) was dissolved in THF (2 mL) and at 0° C. sodium hydride dispersion (55% in oil, 0.1 g) was added. The mixture was allowed to stir for 30 minutes and subsequently, a solution of 2-chloromethyl-pyrimidin-4-ylamine (0.2 g, Eur. Pat. Appl. EP 61318 A2, 1982; Eur. Pat. Appl. 60094 A2, 1982) in THF (7 mL) was added dropwise. The resulting mixture was heated to reflux for 2 hours, cooled and water was added. The mixture was extracted with ethyl acetate and the organic layers were combined, dried over Na2SO4, filtered and evaporated. The residue was purified by flash chromatography (ethyl acetate/methanol 9:1) to give 2-cyclopropylmethoxymethyl-pyrimidin-4-ylamine as colorless solid (54 mg). 1H NMR (δ, CDCl3): 8.22 (d, 1H), 6.32 (d, 1H), 4.98 (br s, 2H), 4.58 (s, 2H), 3.46 (d, 2H), 1.21-1.12 (m, 1H), 0.59-0.53 (m, 2H), 0.27-0.24 (m, 2H). MS (ESI): 180.3 (MH+).

1. additionwas added
2. temperatureThe resulting mixture was heated
3. temperatureto reflux for 2 hours
4. temperaturecooled
5. extractionThe mixture was extracted with ethyl acetate
6. dry with materialdried over Na2SO4
7. filtrationfiltered
8. customevaporated
9. customThe residue was purified by flash chromatography (ethyl acetate/methanol 9:1)