Acetaldehyde → N-(5-Bromo-pyridin-2-yl)-3-(7-isopropyl-pyrido[2,3-d]pyrimidin-4-ylamino)-4-[4-(ethyl-propyl-amino)-phenylsulfanyl]-benzamide

Participants

Reaction Steps

To the product of Example 378 (31 mg, 0.05 mmol) and sodium triacetoxyborohydride (414 mg, 2.0 mmol) in dichloromethane/methanol (5 mL, 9:1) was added acetaldehyde (112 μL, 2.0 mmol). The mixture was stirred at room temperature for 16 hours and evaporated. The residue was partitioned between saturated sodium carbonate solution and ethyl acetate. The organic layer was washed with water, dried with magnesium sulfate, filtered and evaporated. The residue was purified by silica gel chromatography eluting with dichloromethane/methanol (99:1) to give the title compound (25 mg, 77%). 1H NMR (300 MHz, DMSO-D6) δ ppm: 0.90 (t, J=7.35 Hz, 3 H) 1.09 (t, J=6.99 Hz, 3 H) 1.34 (d, J=6.99 Hz, 6 H) 1.55 (m, 2 H) 3.24 (m, 3 H) 3.38 (q, J=6.99 Hz, 2 H) 6.71 (d, J=8.82 Hz, 2 H) 6.87 (d, J=8.82 Hz, 1 H) 7.26 (d, J=8.82 Hz, 2 H) 7.63 (d, J=8.46 Hz, 1 H) 7.88 (d, J=8.46 Hz, 1 H) 8.04 (d, J=2.57 Hz, 1 H) 8.07 (d, J=2.21 Hz, 1 H) 8.17 (m, 1 H) 8.49 (d, J=1.84 Hz, 1 H) 8.58 (s, 1 H) 8.89 (d, J=8.46 Hz, 1 H) 10.13 (s, 1 H) 10.91 (s, 1 H); (ESI+) m/z 656, 658 (M+H)+.

Provenance & Evidence