Potassium Carbonate → HCID 68751488, Verbindung

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

A vial was charged with 2-chloro-N-cyclopropylfuro[3,2-d]pyrimidin-4-amine (0.09 g, 0.429 mmol, Preparation #A.1), 4-(methylsulfonyl)aniline (0.077 g, 0.451 mmol, Oakwood), X-Phos (0.020 g, 0.043 mmol), Pd2dba3 (0.020 g, 0.021 mmol), K2CO3 (0.062 g, 0.451 mmol) and t-BuOH (3.5 mL). The vial was purged with argon and heated at about 100° C. overnight. The mixture was diluted with CHCl3 (about 10 mL) passed through a SiCO3 SPE cartridge and concentrated. The crude product was purified by preparative reverse phase HPLC (Table 2, Method a) to provide N4-allyl-N2-(4-(methylsulfonyl)phenyl)furo[3,2-d]pyrimidine-2,4-diamine (0.041 g, 27%): 1H NMR (DMSO-d6) δ 9.53 (s, 1H), 8.11 (d, J=2.1 Hz, 1H), 8.02 (m, 3H), 7.72 (d, J=8.9 Hz, 2H), 6.80 (d, J=2.1 Hz, 1H), 6.00 (ddd, J=17.1, 10.2, 5.1 Hz, 1H), 5.22 (dd, J=17.1, 1.6 Hz, 1H), 5.11 (dd, J=10.5, 1.6 Hz, 1H), 4.14 (dd, J=5.1 Hz, 2H), 3.11 (s, 3H). Syk IC50=B.

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