Methanol → HCID 69038230, compound

Participants

Reaction Steps

A suspension of 1-(3-tert-butylisoxazol-5-yl)-3-(2-fluoro-4-methyl-5-(8-methyl-2-(methylthio)-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-6-yl)phenyl)urea from Example 96 (15 mg, 0.030 mmol) in CH2Cl2 (1 mL) was treated with mCPBA (70%, 8.94 mg, 0.036 mmol). After 30 min, methanol (0.050 mL 1.2 mmol) and triethylamine (0.020 mL, 0.14 mmol) were added and the resultant mixture was heated to 40° C. overnight. The reaction was concentrated in vacuo and purified by chromatography to provide 1-(3-tert-butylisoxazol-5-yl)-3-(2-fluoro-5-(2-methoxy-8-methyl-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-6-yl)-4-methylphenyl)urea. (8.6 mg, 59% yield). 1H NMR (400 MHz, DMSO-d6): δ 10.32 (s, 1H), 8.93 (s, 1H), 8.72 (s, 1H), 7.93 (d, J=8.3 Hz, 1H), 7.90 (s, 1H), 7.20 (d, J=12.3 Hz, 1H), 6.00 (s, 1H), 4.02 (s, 3H), 3.63 (s, 3H), 2.09 (s, 3H), 1.21 (s, 9H); MS (ESI) m/z: 481.2 (M+H+).

Provenance & Evidence