反应详情

To a mixture of N2′-(trans-4-aminocyclohexyl)-3,5′-dichloro-N6-((tetrahydro-2H-pyran-4-yl)methyl)-2,4′-bipyridine-2′,6-diamine (45 mg, 0.10 mmol) and triethylamine (0.028 mL, 0.20 mmol) in chloroform (0.4 ml) was added 2-(trifluoromethoxy)ethyl trifluoromethanesulfonate (39 mg, 0.15 mmol). The mixture was stirred at ambient temperature for 1 hr. The reaction mixture was concentrated under reduced pressure, purified by reverse phase HPLC, and lyophilized to give 29 mg of 3,5′-dichloro-N6-((tetrahydro-2H-pyran-4-yl)methyl)-N2′-(trans-4-(2-(trifluoromethoxy)ethylamino)cyclohexyl)-2,4′-bipyridine-2′,6-diamine as its TFA salt. LCMS (m/z): 562.4 (MH+), retention time=0.67 min.; 1H NMR (400 MHz, DMSO-d6) δ ppm 1.07-1.32 (m, 4 H) 1.36-1.52 (m, 2 H) 1.58 (d, J=12.91 Hz, 2 H) 1.65-1.84 (m, 1 H) 2.07 (d, J=10.56 Hz, 4 H) 2.99-3.17 (m, 3 H) 3.23 (t, J=10.76 Hz, 2 H) 3.35 (br. s., 2 H) 3.64 (br. s., 1 H) 3.72-3.89 (m, 2 H) 4.34 (t, J=4.89 Hz, 2 H) 6.32-6.47 (m, 1 H) 6.49-6.65 (m, 1 H) 6.67-7.10 (m, 2 H) 7.49 (d, J=9.00 Hz, 1 H) 8.03 (s, 1 H) 8.75 (d, J=3.91 Hz, 1 H)

1. concentrationThe reaction mixture was concentrated under reduced pressure
2. custompurified by reverse phase HPLC