反应详情

A solution of {6-[3-(2-amino-ethyl)-phenyl]-2-methoxy-pyrimidin-4-yl}-[2-(2-fluoro-4-trifluoromethyl-phenyl)-ethyl]-amine [150 mg, 0.35 mmol, see Example 64, step 2] and triethylamine (0.24 mL, 1.73 mmol) in DCM (5 mL) is treated with acetyl chloride (54 mg, 0.69 mmol) at 10° C. After 10 min at 10° C., the mixture is quenched with aqueous NaHCO3 solution (8 mL), and filtered through Chem-Elut with CH2Cl2 washing (10 mL). The filtrate is concentrated, and subjected to chromatography on silica gel eluting with 80% EtOAc in Heptane to 5% MeOH in CH2Cl2 to give N-[2-(3-{6-[2-(2-fluoro-4-trifluoromethyl-phenyl)-ethylamino]-2-methoxy-pyrimidin-4-yl}-phenyl)-ethyl]-acetamide, which is treated with saturated solution of hydrogen chloride in EtOAc followed by lyophilization to afford N-[2-(3-{6-[2-(2-fluoro-4-trifluoromethyl-phenyl)-ethylamino]-2-methoxy-pyrimidin-4-yl}-phenyl)-ethyl]-acetamide hydrochloride [70 mg, Example 65]. LCMS: RT=2.2 minutes, MS: 477 (M+H); 1H NMR (300 MHz, CDCl3) □9.1 (1H, s), 7.95 (1H, brs), 7.7-7.4 (7H, m), 6.65 (1H, s), 4 (3H, s), 3.8-3.75 (2H, m), 3.3 (2H, q, J=6.9 Hz), 3.04 (2H, t, J=6.6 Hz), 2.78 (2H, t, J=7.5 Hz), 2.49 (3H, s). IC50=37 nM

1. customthe mixture is quenched with aqueous NaHCO3 solution (8 mL)
2. filtrationfiltered through Chem-Elut with CH2Cl2 washing (10 mL)
3. concentrationThe filtrate is concentrated