(E)-3-cyclopropylprop-2-enenitrile

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: This compound was prepared by using procedures analogous to those described for the synthesis of Example 89, Step 2 starting from N-{3-[7-(1H-pyrazol-4-yl)imidazo[1,2-b]pyridazin-3-yl]phenyl}-N′-(2,2,2-trifluoroethyl)urea and (2E)-3-cyclopropylacrylonitrile. LCMS (M+H)+: m/z=495.2. This compound was prepared

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: This compound was prepared by using procedures analogous to those described for the synthesis of Example 89, Step 2 starting from N-{3-[7-(1H-pyrazol-4-yl)imidazo[1,2-b]pyridazin-3-yl]phenyl}-N′-(2,2,2-trifluoroethyl)urea and (2E)-3-cyclopropylacrylonitrile. LCMS (M+H)+: m/z=495.2. This compound was prepared

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: This compound was prepared by using procedures analogous to those described for the synthesis of Example 89, Step 2 starting from N-{3-[7-(1H-pyrazol-4-yl)imidazo[1,2-b]pyridazin-3-yl]phenyl}-N′-(2,2,2-trifluoroethyl)urea and (2E)-3-cyclopropylacrylonitrile. LCMS (M+H)+: m/z=495.2. This compound was prepared

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (10.0 g, 0.0515 mol) in acetonitrile (129 mL, 2.46 mol) was added (E)-3-cyclopropylacrylonitrile (5.75 g, 0.0617 mol), followed by 1,8-diazabicyclo[5.4.0]undec-7-ene (3.85 mL, 0.0258 mol). The resulting mixture was stirred at room temperature overnight, and evaporated to dryness. The mixture was purified on silica gel, eluting with 0 to 80% EtOAc in hexanes, to give the desired product as racemic mixture (10.8 g, 73.0%). LCMS (M+H) 288.4. evaporated to dryness The mixture was purified on silica gel eluting with 0 to 80% EtOAc in hexanes

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: This compound was prepared by using procedures analogous to those described for the synthesis of Example 89, Step 2 starting from N-{3-[7-(1H-pyrazol-4-yl)imidazo[1,2-b]pyridazin-3-yl]phenyl}-N′-(2,2,2-trifluoroethyl)urea and (2E)-3-cyclopropylacrylonitrile. LCMS (M+H)+: m/z=495.2. This compound was prepared