Propargyl bromide → 1-[3-({4-Amino-7-[3-(1-piperidinyl)-1-propyn-1-yl]pyrrolo[2,1-f][1,2,4]triazin-5-yl}carbonyl)phenyl]-3-(2,4-dichlorophenyl)urea

Participants

Reaction Conditions

Reaction Steps

A solution of piperidine (2 mL) and propargyl bromide (80 wt % in toluene, 0.02 mL, 0.19 mmol) was purged with argon for 10 minutes. The solution was treated with 95G (20 mg, 0.04 mmol), CuI (1 mg, 0.008 mmol) and PdCl2(PPh3)2 (3 mg, 0.004 mmol). The reaction mixture was heated to 80° C. for one hour and then concentrated. The residue was purified by flash chromatography (SiO2, 0% to 10% MeOH/CH2Cl2) to afford the desired compound (13 mg, 62%). HPLC tR=3.17 min (Chromolith SpeedROD 4.6×50 mm, 10-90% aqueous methanol containing 0.1% TFA, 4 min gradient, monitored at 254 nm). [M+H+]=562.27.

Provenance & Evidence