Sodium Carbonate → 2-[4-(4-Fluorophenoxy)phenyl]pyrimidine-4-carboxamide

Participants

Reaction Conditions

Reaction Steps

To a mixture of the (S)-6-((3-amino-2-hydroxy-3-oxopropyl)amino)-2-chloropyrimidine-4-carboxamide (0.372 g, 1.43 mmol) in dioxane (10 mL) was added 2-(4-(4-fluorophenoxy)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (0.494 g, 1.57 mmol), 2M aqueous Na2CO3 (1.45 mL, 2.90 mmol), and PdCl2(dppf) (0.063 g, 0.077 mmol). The reaction vessel was flushed with argon, sealed, and heated at 100° C. overnight. After cooling, the reaction mixture was evaporated in vacuo and the residue triturated with 25 mL acetone. The insoluble solid was filtered off and washed successively with water, MeOH, 1N aqueous HCl, water, and MeOH. The solid was then dissolved in 3 mL DMSO with warming and diluted with 15 mL MeOH. Upon standing the solution deposited a solid that was filtered and rinsed twice with 5 mL MeOH and once with 2:1 acetonitrile/DMSO. The remaining solid was purified by reverse-phase chromatography using a 40-70% acetonitrile in water (+0.1% TFA) gradient. The product fractions were pooled and lyophilized to give (S)-6-(3-amino-2-hydroxy-3-oxopropyl)amino)-2-(4-(4-fluorophenoxy)phenyl)pyrimidine-4-carboxamide as a cream-colored powder (0.115 g, 0.280 mmol, 20% yield). 1H NMR (400 MHz, DMSO-d6): 8.54 (2H, d, J=8.1 Hz), 8.26 (1H, s), 7.91-7.84 (1H, m), 7.73 (1H, s), 7.33-7.23 (4H, m), 7.19-7.13 (2H, m), 7.08-7.01 (3H, m), 5.78 (1H, br s), 4.14-4.07 (1H, m), 3.92-3.83 (1H, m), 3.53-3.45 (1H, m). LC/MS: m/z=412.0 [M+H]+.

Provenance & Evidence