Water → 1-[3-tert-Butyl-1'-(2-hydroxy-ethyl)-1'H-[1,4]bipyrazolyl-5-yl]-3-[(1S,4R)-4-(3-piperidin-1-yl-[1,2,4]triazolo[4,3-a]pyridin-6-yloxy)-1,2,3,4-tetrahydro-naphthalen-1-yl]-urea

Participants

Reaction Conditions

Reaction Steps

To a solution of Intermediate 108c (170 mg, 0.23 mmol) in MeOH (2.5 mL) was added pyridinium p-toluenesulfonate (118 mg, 0.47 mmol) and the reaction mixture was heated at 60° C. for 2 h. The resultant mixture was poured into water and a saturated aqueous solution of NaHCO3 was added. The aqueous phase was extracted with EtOAc (×3) and the combined organic layers were washed with brine, dried (MgSO4) and concentrated in vacuo. The resultant residue was purified by FCC on silica, using a gradient of 0-10% MeOH in DCM, to give the title compound (105 mg, 72%). LCMS (Method 1): Rt 2.96 min, m/z 639 [MH+].

Provenance & Evidence