反应详情

温度

55 °C

2-(6-chloro-3-iodo-1-trityl-1H-pyrazolo[4,3-c]pyridin-4-yl)-N-(4-methoxybenzyl)ethanamine (268 mg, 0.391 mmol) and RuPhos pre-catalyst (16 mg, 0.02 mmol) were charged in a 1 dram vial, evacuated and backfilled with nitrogen and taken in 1,4-dioxane (2 mL). Added a solution of 2M NaOtBu in THF (0.5 ml, 0.978 mmol) and reaction heated to 55° C. for 1 hour. The reaction mixture was diluted with EtOAc and washed with water, brine, dried with sodium sulfate and concentrated. Purification of the residue by flash column (0-25% EtOAc-hexanes) gave 7-chloro-3-(4-methoxybenzyl)-1-trityl-1,3,4,5-tetrahydropyrazolo[3,4,5-de][1,6]naphthyridine. MS ESI calc'd. for C35H29 ClN4O [M+H]+ 558. found 558.

1. customevacuated
2. additionAdded
3. washwashed with water, brine
4. dry with materialdried with sodium sulfate
5. concentrationconcentrated
6. customPurification of the residue by flash column (0-25% EtOAc-hexanes)