Dimethylformamide → Diethyl [4-({4-[(7-cyano-2-methyl-3-oxo-2,3-dihydro-1H-isoindol-4-yl)amino]-5-(trifluoromethyl)pyrimidin-2-yl}amino)benzyl]phosphonate

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A mixture of diethyl[4-({4-[(7-bromo-2-methyl-3-oxo-2,3-dihydro-1H-isoindol-4-yl)amino]-5-(trifluoromethyl)pyrimidin-2-yl}amino)benzyl]phosphonate (20.0 mg, 0.0318 mmol), zinc cyanide (3.74 mg, 0.0318 mmol), Pd(PPh3)4 (5.52 mg, 0.00477 mmol) in DMF (0.5 mL) was evacuated and purged with N2 three times. The mixture was irradiated in a microwave reactor at 150° C. for 5 minutes. The crude mixture was passed though a Thiol-SPE cartridge to remove Pd and subsequently purified by MDP. The title compound was obtained as white solid (13.5 mg, 74% yield). 1H NMR (400 MHz, CDCl3) δ=1.29 (t, J=7.1 Hz, 6H), 3.20 (d, J=21.5 Hz, 2H), 3.24 (s, 3H), 4.09 (quin, J=7.3 Hz, 4H), 4.54 (s, 2H), 7.31-7.39 (m, 2H), 7.49 (d, J=8.1 Hz, 2H), 7.56 (br. s., 1H), 7.70 (d, J=8.8 Hz, 1H), 8.44 (s, 1H), 8.70 (d, J=8.3 Hz, 1H), 10.85 (s, 1H). MS (ES+): m/z 575.21 (100) [MH+] HPLC: tR=1.08 min (UPLC, purity).

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