反应详情

(4-Fluoro-3-methylsulfonyl-phenyl)-spiro[piperidine-4,4′-pyrrolo[2,1-c][1,4]benzoxazine]-1-yl-methanone (44 mg, 0.10 mmol) and MeOH (12 μL, 0.30 mmol) were combined in DMF (1 mL). NaH (60%, 12 mg, 0.30 mmol) was added and the reaction mixture was stirred for 10 minutes. The mixture was filtered and was purified by reverse phase preparative liquid chromatography utilizing a gradient of 10-99% acetonitrile in water containing 5 mM hydrochloric acid to give (4-methoxy-3-(methylsulfonyl)phenyl)(spiro[benzo[b]pyrrolo[1,2-d][1,4]oxazine-4,4′-piperidine]-1′-yl)methanone. ESI-MS m/z calc. 452.1, found 453.5 (M+1)+; Retention time: 1.78 minutes (3 min run). 1H NMR (400 MHz, DMSO) δ 7.87 (d, J=2.0 Hz, 1H), 7.86-7.81 (m, 1H), 7.67 (d, J=7.6 Hz, 1H), 7.50 (s, 1H), 7.36 (d, J=8.6 Hz, 1H), 7.22-7.02 (m, 3H), 6.28 (t, J=3.1 Hz, 1H), 6.16 (d, J=2.3 Hz, 1H), 4.52-4.18 (m, 1H), 4.00 (s, 3H), 3.58 (s, 3H), 3.28 (s, 3H), 1.98 (s, 4H).

1. filtrationThe mixture was filtered
2. customwas purified by reverse phase preparative liquid chromatography