反应详情

温度

100 °C

7-chloro-3-(4-methoxybenzyl)-4-methyl-1,3,4,5-tetrahydropyrazolo[3,4,5-de][1,6]naphthyridine (150 mg, 0.263 mmol), (R)-1-(1-phenylethyl)urea (64.7 mg, 0.394 mmol), cesium carbonate (257 mg, 0.788 mmol) and BrettPhos pre-catalyst (23.8 mg, 0.026 mmol) were charged in a 1 dram vial, evacuated and backfilled with nitrogen and taken in 1,4-dioxane (1.4 mL). The mixture was heated at 100° C. for 1 hour before it was diluted with DCM, washed with water, brine, dried with sodium sulfate and concentrated. Purification of the residue by flash column (0-80% EtOAc-hexanes) gave 1-(3-(4-methoxybenzyl)-4-methyl-1,3,4,5-tetrahydropyrazolo[3,4,5-de][1,6]naphthyridin-7-yl)-3-((R)-1-phenylethyl)urea. MS ESI calc'd. for C26H28N6O2[M+H]+ 699. found 699.

1. customevacuated
2. additionwas diluted with DCM
3. washwashed with water, brine
4. dry with materialdried with sodium sulfate
5. concentrationconcentrated
6. customPurification of the residue by flash column (0-80% EtOAc-hexanes)