反应详情

A suspension of 5-chloro-8-fluoro-3-[(4-methylphenyl)sulfonyl]pyrrolo[2′,3′:4,5]pyrimido[6,1-b]quinazolin-7(3H)-one hydrogen chloride (0.600 g, 1.252 mmol) and 1-[(dimethylamino)acetyl]-2,3-dihydro-1H-indol-6-amine (0.274 g, 1.252 mmol) was maintained at 70° C. in tetrahydrofuran (20 ml) in a pressure tube for 16 hours. The reaction was cooled, opened, concentrated under reduced pressure, and redissolved in methylene chloride/2,2,2-trifluoroethanol (ca 15 mL). Saturated sodium bicarbonate was added and all solids dissolve. The organic layer was dried over sodium sulfate, filtered, taken to a residue under reduced pressure, and triturated with diethyl ether to afford 5-{[1-(N,N-dimethylglycyl)-2,3-dihydro-1H-indol-6-yl]amino}-8-fluoro-3-[(4-methylphenyl)sulfonyl]pyrrolo[2′,3′:4,5]pyrimido[6,1-b]quinazolin-7(3H)-one (0.696 g, 1.112 mmol, 89%) as a yellow solid. A suspension of 5-{[1-(N,N-dimethylglycyl)-2,3-dihydro-1H-indol-6-yl]amino}-8-fluoro-3-[(4-methylphenyl)sulfonyl]pyrrolo[2′,3′:4,5]pyrimido[6,1-b]quinazolin-7(3H)-one (0.696 g, 1.112 mmol) in tetrahydrofuran (20 ml) was treated with 2.0M methyl amine/THF (3.34 ml, 6.67 mmol) and over 24 hours all solids dissolve. The solution was poured into saturated sodium bicarbonate/EtOAc and the organic layer was dried over sodium sulfate, filtered, and taken to a residue under reduced pressure. The residue was dissolved in 1,4-dioxane (8 ml)/2.0N NaOH (aq) (8 ml) and maintained at 120° C. under microwave heating for 12 minutes. The solution was cooled, poured into ethyl acetate/THF/saturated sodium chloride (aq) and the organic layer was dried over sodium sulfate, filtered, stripped onto celite, and purified by column chromatography to afford 2-[(2-{[1-(N,N-dimethylglycyl)-2,3-dihydro-1H-indol-6-yl]amino}-1H-pyrrolo[2,3-d]pyrimidin-4-yl)amino]-6-fluoro-N-methylbenzamide (0.230 g, 0.458 mmol, 41.1%) as a yellow solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 11.33 (s, 1H), 10.20 (s, 1H), 8.89 (s, 1H), 8.54 (d, J=7.62 Hz, 1H), 8.21 (s, 1H), 7.83 (d, J=7.22 Hz, 1H), 7.34-7.48 (m, 1H), 7.10 (d, J=8.23 Hz, 1H), 6.85-7.01 (m, 3H), 6.29 (dd, J=3.41, 1.81 Hz, 1H), 4.15 (t, J=8.23 Hz, 2H), 3.21 (s, 2H), 2.99-3.12 (m, 2H), 2.79 (d, J=4.61 Hz, 3H), 2.27 (s, 6H). ESIMS (M+H)+=503.

1. temperatureThe reaction was cooled
2. concentrationconcentrated under reduced pressure
3. dissolutionredissolved in methylene chloride/2,2,2-trifluoroethanol (ca 15 mL)
4. additionSaturated sodium bicarbonate was added
5. dissolutionall solids dissolve
6. dry with materialThe organic layer was dried over sodium sulfate
7. filtrationfiltered
8. customtriturated with diethyl ether