反应详情

温度

120 °C

2,6-Dimorpholinopyridin-4-amine (140 mg, 0.53 mmol), 2-chloro-N-(5-chlorobenzo[d][1,3]dioxol-4-yl)pyrimidin-4-amine (150 mg, 0.53 mmol), 1,8-diazabicyclo-[5.4.0]-undec-7-ene (0.158 mL, 1.06 mmol), bis(dibenzylideneacetone)palladium(0) (45.5 mg, 0.08 mmol) and 9,9-dimethyl-4,5-bis(diphenylphosphino)xanthene (92 mg, 0.16 mmol) were dissolved in dioxane (3 mL) and sealed into a microwave tube. The reaction was degassed, purged with nitrogen and heated at 120° C. overnight. The reaction mixture was filtered off and washed thoroughly with dichloromethane. The filtrate was concentrated to dryness, diluted with dichloromethane (15 ml), washed with water (30 ml) and brine (15 ml), dried over magnesium sulfate and concentrated. The crude product was purified by flash chromatography on silica gel eluting with 0 to 50% ethyl acetate in dichloromethane. The solvent was evaporated to dryness to afford N4-(5-chlorobenzo[d][1,3]dioxol-4-yl)-N2-(2,6-dimorpholinopyridin-4-yl)pyrimidine-2,4-diamine (80 mg, 29.6%) as a pale beige foam. NMR Spectrum: (DMSOd6) 3.09-3.25 (m, 8H), 3.57-3.70 (m, 8H), 6.00 (s, 2H), 6.17 (d, 1H), 6.52 (s, 2H), 6.91 (d, 1H), 7.04 (d, 1H), 8.02 (d, 1H), 9.02 (s, 1H), 9.03 (s, 1H); Mass spectrum: MH+ 512.

1. customsealed into a microwave tube
2. customThe reaction was degassed
3. custompurged with nitrogen
4. filtrationThe reaction mixture was filtered off
5. washwashed thoroughly with dichloromethane
6. concentrationThe filtrate was concentrated to dryness
7. additiondiluted with dichloromethane (15 ml)
8. washwashed with water (30 ml) and brine (15 ml)
9. dry with materialdried over magnesium sulfate
10. concentrationconcentrated
11. customThe crude product was purified by flash chromatography on silica gel eluting with 0 to 50% ethyl acetate in dichloromethane
12. customThe solvent was evaporated to dryness