反应详情

4-Chloro-7,7a-dihydro-5-iodo-7-isopropyl-4aH-pyrrolo[2,3-d]pyrimidine (0.3 g, 0.93 mmol) from above was placed within a 15 ml pressure tube. 2 M methylamine in THF (15 ml) was added, and the reaction was left to stir overnight. The volatiles were removed in vacuo, and the residue was dissolved in methanol, 5 ml silica gel were added, and the volatiles were removed in vacuo. The adhered product was purified by silica gel chromatography (ethyl acetate:hexanes), and the requisite fractions were pooled and evaporated in vacuo to yield the desired product (0.25 g, 85% yield). 1H NMR (399.6 MHz, CDCl3) δ 1.43 (6H, d, J=6.8 Hz), 3.13 (3H, d, J=4.8 Hz), 5.0 (1H, sp, J=6.8 Hz), 7.02 (1H, s), 8.35 (1H, s).

1. waitthe reaction was left
2. customThe volatiles were removed in vacuo
3. dissolutionthe residue was dissolved in methanol
4. addition5 ml silica gel were added
5. customthe volatiles were removed in vacuo
6. customThe adhered product was purified by silica gel chromatography (ethyl acetate:hexanes)
7. customevaporated in vacuo