Potassium Carbonate → HCID 16123061, compound

Participants

Reaction Conditions

Reaction Steps

In a 350 mL pressure tube 2-amino-6-bromo-8-isopropyl-4-methylpyrido[2,3-d]pyrimidin-7(8H)-one (1.50 g, 5.05 mmol), 1H-pyrazol-3-yl boronic acid (1.12 g, 10.09 mmol), K2CO3 (336 mg, 15.1 mmol), and tetrakis(triphenylphosphine) palladium (0) (583 mg, 0.0504 mmol) were dissolved in 50 mL dioxane and 5 mL H2O. The tube was sealed, heated to 100° C. and allowed to react overnight. A color change was observed. LCMS indicated no presence of starting material. Sample was filtered through a syringe filter and evaporated to dryness. Compound was dissolved in ethyl acetate and triturated in hexane. Light yellow powder of 2-amino-8-isopropyl-4-methyl-6-(1H-pyrazol-5-yl)pyrido[2,3-d]pyrimidin-7(8H)-one (195 mg, 13.7% yield) was found to be 98% pure by HPLC. NMR (400 MHz, CDCl3) δ 12.97 (br s, 1H), 8.35 (s, 1H), 7.60 (br s, 1H), 7.21 (s, 2H), 6.94 (s, 1H), 5.86 (br s, 1H), 2.50 (m, 6H), 1.54 (s, 3H), MS (EI) for C14H16N6O: 285.0 (MH+).

Provenance & Evidence