反应详情

A solution of 8-amino-9,10-difluoro-7-oxo-2,7-dihydrospiro[[1,4]oxazino-[2,3,4-ij]quinoline-3,1′-cyclopropane]-6-carbonitrile (320 mg, 1.1 mmol) and 3-(pyridine-2-yl)propan-1-amine (270 mg, 2 mmol) and triethylamine (221 μL, 2.7 mmol) in DMSO (8 mL) was stirred at 120° C. for 15 hr. The reaction mixture was added portion wise to water and was extracted with ethyl acetate. The organic layer was dried over sodium sulfate and concentrated under vacuum. The dry residue was purified by column chromatograph (ethylacetate, to ethylacetate-MeOH 10:1) to yield the title compound (76.9 mg) as a yellow solid. MS (EP) m/z: 406.2 (M++1). (Calcd for C22H20FN5O2, 405.42). 1H NMR (400 MHz, CD3OD) δ 1.15 (2H, t), 1.59 (2H, t), 2.03 (2H, t), 2.88 (2H, t), 3.54 (2H, m), 4.15 (2H, s), 7.23 (1H, m), 7.33 (1H, m), 7.74 (1H, m), 8.04 (1H, s), 8.42 (1H, m)

1. extractionwas extracted with ethyl acetate
2. dry with materialThe organic layer was dried over sodium sulfate
3. concentrationconcentrated under vacuum
4. customThe dry residue was purified by column chromatograph (ethylacetate, to ethylacetate-MeOH 10:1)