2-(Di-tert-butylphosphino)biphenyl → HCID 59856805, compound

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Reaction Conditions

Reaction Steps

A mixture of 4-amino-3-fluoro-N-(2-isopropoxy-ethyl)-benzenesulfonamide (116 mg, 0.42 mmol), 4-(6-chloro-5-methyl-pyrimidin-4-yloxy)-piperidine-1-carboxylic acid isopropyl ester (100 mg, 0.3 mmol), palladium acetate (3 mg, 0.017 mmol), biphenyl-2-yl-di-tert-butyl-phosphane (7.1 mg, 0.034 mmol), and sodium t-butoxide (87 mg, 0.90 mmol) in dioxane (2 mL) was heated under microwave irradiation for 60 min at 150° C. The crude mixture was concentrated in vacuo and purified by HPLC to provide Compound A106 as a brown solid (50 mg, 22%). 1H NMR (CDCl3, 400 MHz) δ 1.04 (d, 6H), 1.19 (d, 6H), 1.67-1.78 (m, 2H), 1.89-1.99 (m, 5H), 3.05 (t, 2H), 3.30-3.40 (m, 4H), 3.42-3.52 (m, 1H), 3.66-3.76 (m, 1H), 4.87 (h, 1H), 5.19-5.38 (m, 2H), 7.58 (t, 3H), 7.90-7.98 (s broad, 1H), 8.24 (t, 1H), 8.35 (s, 1H). Exact mass calculated for C23H36FN5O6S 553.65, found 554.6 (MH+).

Provenance & Evidence