L-Alaninol → HCID 69297462, compound

Participants

Reaction Steps

Using the procedure in Example 57, 1-(3-t-butylisoxazol-5-yl)-3-(2-fluoro-5-(8-methyl-2-(methylsulfinyl)-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-6-yl)phenyl)urea from Example 43 (0.150 g, 0.311 mmol, 1.00 eq) and L-alaninol (48.4 μL, 0.622 mmol, 2.00 eq) were combined to afford (S)-1-(3-t-butylisoxazol-5-yl)-3-(2-fluoro-5-(2-(1-hydroxypropan-2-ylamino)-8-methyl-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-6-yl)phenyl)urea (72 mg, 46% yield) as an off-white solid. 1H NMR (400 MHz, DMSO-d4): δ 10.34 (s, 1H), 8.73 (brs, 1H), 8.65 (brs, 1H), 8.39 (dd, J=2.4 and 8.0 Hz, 1H), 7.87 (s, 1H), 7.60-7.57 (m, 1H), 7.35-7.25 (m, 2H), 6.06 (s, 1H), 4.70 (t, J=6.0 Hz, 1H), 4.09 (brs, 1H), 3.58-3.49 (m, 4H), 3.35 (brs, 1H), 1.23 (s, 9H), 1.17-1.15 (m, 3H); MS (ESI) m/z: 510.2 (M+H+).

Provenance & Evidence