反应详情

A mixture of tert-butyl (3R)-3-((6-(5-(5-methoxy-3-pyridinyl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-3-yl)-2-pyrazinyl)oxy)-1-piperidinecarboxylate (0.062 g, 0.106 mmol) and HCl (5 M in i-PrOH, 2.114 mL, 10.57 mmol, Acros) in 1 ml of MeOH and 1 mL of DCM was heated at reflux for 30 min. The crude reaction was cooled to RT and concentrated to a yellowish-green solid that was slurried with a 1/1 mixture of DCM/MeOH (2 mL) and applied to a pre-washed (5 mL MeOH) of Si-propylsulfonic acid (Silicycle, Cat# R51230B). The column was washed with MeOH (10 mL). The compound was released with 15 mL of 2 M NH3 in MeOH to afford 5-(5-methoxy-3-pyridinyl)-3-(6-((3R)-3-piperidinyloxy)-2-pyrazinyl)-1H-indazole as an off-white foam. MS (ESI, pos. ion) m/z: 403.1 (M+1).

1. temperaturewas heated
2. temperatureat reflux for 30 min
3. customThe crude reaction
4. concentrationconcentrated to a yellowish-green solid that
5. additionwas slurried with a 1/1 mixture of DCM/MeOH (2 mL)
6. washa pre-washed (5 mL MeOH) of Si-propylsulfonic acid (Silicycle, Cat# R51230B)
7. washThe column was washed with MeOH (10 mL)