2-Azetidinecarboxylic acid, (S)- → HCID 72705769, compound

Participants

Reaction Conditions

Reaction Steps

N-[3-(6-Fluoropyridin-3-yl)-5-methylphenyl]-4-(trifluoromethyl)pyrimidin-2-amine (15.0 g, 43.1 mmol), (2S)-azetidine-2-carboxylic acid (5.23 g, 51.7 mmol) and tripotassium phosphate (18.3 g, 86.0 mmol) are flushed and purged with N2(g) (3×) and DMSO (107 mL) was added. The reaction mixture was heated to 130° C. for 6 hours, then cooled to room temperature and was stirred overnight. The CELITE was added to the reaction mixture, filtered and precipitated by addition of acetonitrile (ca. 300 mL). The crude product was collected by filtration and purified by reverse phase chromatography to yield (2S)-1-[5-(3-methyl-5-{[4-(trifluoromethyl)pyrimidin-2-yl]amino}phenyl)pyridin-2-yl]azetidine-2-carboxylic acid. MS ESI calc'd for C21H19F3N5O2 [M+H]+ 430. found 430. 1H NMR (600 MHz, CDCl3) δ 8.64 (d, J=4.7 Hz, 1H), 8.29 (s, 1H), 7.85 (d, J=8.5 Hz, 1H), 7.77 (s, 1H), 7.43 (s, 1H), 7.27 (s, 1H), 7.06-6.94 (m, 2H), 6.50 (d, J=8.6 Hz, 1H), 4.88 (t, J=8.1 Hz, 1H), 3.90 (dd, J=8.2 Hz, 16.3 Hz, 2H), 3.03-2.88 (m, 1H), 2.49 (d, J=8.3 Hz, 1H), 2.40 (s, 3H).

Provenance & Evidence