Acryloyl chloride → HCID 86677276, compound

Participants

Reaction Conditions

Reaction Steps

A solution of acryloyl chloride (58.4 mg, 0.64 mmol) in CH2Cl2 (1 mL) was added dropwise to a mixture of 4-methoxy-N′-[4-(1-methylindol-3-yl)pyrimidin-2-yl]-6-(4-methylpiperazin-1-yl)benzene-1,3-diamine (Intermediate 110, 286 mg, 0.64 mmol) and DIPEA (0.134 mL, 0.77 mmol) in CH2Cl2 (20 mL), which was cooled in an ice/water bath. The mixture was stirred for 1.5 h at 0° C. More DIPEA was added (30 μL) then more acryloyl chloride (20 mg) was added dropwise as a solution in CH2Cl2 (1 mL). This mixture was stirred for 2 h and then diluted with CH2Cl2 (50 mL). This solution was washed with sat. NaHCO3 solution (2×25 mL) and then the combined aqueous washes were extracted with CH2Cl2 (2×25 mL). The combined organic solutions were washed with brine, dried (MgSO4) and concentrated in vacuo. The resulting gum was triturated with diethyl ether to give a solid which was collected by filtration and dried in vacuo. Purification by FCC, eluting with 0-8% 7N methanolic ammonia in CH2Cl2 gave the title compound (55 mg, 17%) as a light grey solid after trituration with diethyl ether (with a few drops of CH3OH); 1H NMR: 2.27 (3H, s), 2.53-2.59 (4H, m), 2.85-2.91 (4H, m), 3.87 (3H, s), 3.91 (3H, s), 5.75 (1H, d), 6.24 (1H, d), 6.67 (1H, dd), 6.89 (1H, s), 7.15-7.28 (3H, m), 7.53 (1H, d), 7.89 (1H, s), 8.28 (1H, d), 8.32 (1H, d), 8.58 (1H, s), 8.81 (1H, s), 9.07 (1H, s); m/z: ES+ MH+ 498.58.

Provenance & Evidence