Water → HCID 58266693, compound

To a suspension of sodium hydride (60% in mineral oil, 600 mg, 15.0 mmol) in DMF (20 mL), at 65° C., was slowly added a solution of 4-hydroxy-1-methylpiperidine (1.15 g, 10 mmol) in DMF (7.0 mL). After stirring for 1 h, a solution of 1,3-dibromo-5-fluorobenzene (1.26 mL, 10.0 mmol) in DMF (7.0 mL) was added and the reaction mixture was stirred at 65° C. for 3 days. The mixture was allowed to cool to ambient temperature then poured into water (100 mL) and extracted with ethyl acetate (150 mL). The organic layer was washed with water (100 mL) and loaded onto an SCX-2 cartridge, which was then washed with acetonitrile and eluted with 2N ammonia in methanol. Concentration of the basic methanolic fraction in vacuo gave the title compound (1.88 g, 54%). 1H NMR (CDCl3, 400 MHz): 7.22 (t, J=1.6 Hz, 1H), 6.98 (d, J=1.7 Hz, 2H), 4.31-4.23 (m, 1H), 2.69-2.59 (m, 2H), 2.37-2.18 (m, 5H), 2.01-1.92 (m, 2H), 1.86-1.75 (m, 2H). LCMS (Method B): RT=2.3 min, M+H+=350.

1. stirringthe reaction mixture was stirred at 65° C. for 3 days
2. extractionextracted with ethyl acetate (150 mL)
3. washThe organic layer was washed with water (100 mL)
4. washwas then washed with acetonitrile
5. washeluted with 2N ammonia in methanol

ORD record

ord-b97172b3ffdc4a96a8eee412a06265d1

Source dataset

uspto-grants-2013_08

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08501765B2