四氢吡喃-4-硫代甲酰胺

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Recrystallized NBS (1.56 g, 8.8 mmol) was added to a suspension of N-{2-chloro-3-[(E)-2-(2-chloro-4-pyrimidinyl)-1-hydroxyethenyl]phenyl}-2,6-difluorobenzenesulfonamide (4.02 g, 8.80 mmol) in DMA (15 mL) in an ice-bath. The reaction was immediately removed from the ice bath and allowed to warm to rt over 0.5 h. Tetrahydro-2H-pyran-4-carbothioamide (1.27 g, 8.80 mmol) was added and the reaction warmed in an oil bath (rt to 65° C.). The reaction was diluted with water (100 mL) which caused the precipitation of a yellow solid. The solid was then dissolved by the addition of EtOAc (100 mL) and the phases separated. The aqueous phase was extracted with EtOAc (50 mL). The combined organic phase was filtered through Whatman 1 PS (phase separating) paper and concentrated under vacuum to a crude orange residue. The residue was purified by silica gel chromatography eluting with 0-100% EtOAc/hexanes to give the title compound of Step A as a bright yellow solid (2.56 g; 50.1% yield). 1H NMR (400 MHz, DMSO-d6) δ ppm 10.88 (s, 1H), 8.55 (d, J=5.4 Hz, 1H), 7.62-7.74 (m, 1H), 7.48-7.57 (m, 2H), 7.42-7.47 (m, 1H), 7.22 (t, J=9.1 Hz, 2H), 6.54 (d, J=5.3 Hz, 1H), 3.92 (d, J=11.0 Hz, 2H), 3.41-3.51 (m, 2H), 2.03 (br. s., 2H), 1.69-1.83 (m, J=12.1, 12.1, 11.9, 4.2 Hz, 2H). The reaction was immediately removed from the ice bath the reaction warmed in an oil bath (rt to 65° C.) the precipitation of a yellow solid The solid was then dissolved by the addition of EtOAc (100 mL) the phases separated The aqueous phase was extracted with EtOAc (50 mL) The combined organic phase was filtered through Whatman 1 PS (phase separating) paper concentrated under vacuum to a crude orange residue The residue was purified by silica gel chromatography eluting with 0-100% EtOAc/hexanes

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a solution of N-{5-[(2-chloro-4-pyrimidinyl)acetyl]-2-fluorophenyl}-2,5-difluorobenzenesulfonamide (0.910 g, 2.06 mmol) (prepared in a manner analogous to Intermediate 35) in DMA (8.24 mL) was added NBS (0.385 g, 2.16 mmol). The reaction stirred 30 min at rt and then tetrahydro-2H-pyran-4-carbothioamide (0.389 g, 2.68 mmol) was added. The reaction stirred 16 h at rt. The reaction mixture was poured into water (150 mL), causing precipitation of a solid. The solid was collected by vacuum filtration, redissolved in EtOAc (50 mL), and concentrated onto silica gel. Purification by chromatography (20 to 100% EtOAc:hexanes) afforded the title compound (690 mg, 1.21 mmol, 58.5% yield) as a yellow solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 10.86 (s, 1H), 8.58 (d, J=5.3 Hz, 1H), 7.45-7.69 (m, 4H), 7.42 (dd, J=7.5, 2.0 Hz, 1H), 7.32 (dd, J=10.1, 8.8 Hz, 1H), 7.14 (d, J=5.3 Hz, 1H), 3.95 (dd, J=11.7, 2.0 Hz, 2H), 3.40-3.56 (m, 2H), 3.25-3.41 (m, 1H), 2.02 (dd, J=12.9, 1.6 Hz, 2H), 1.65-1.86 (m, 2H). MS (ESI): 567.09 [M+H]+. The reaction stirred 16 h at rt precipitation of a solid The solid was collected by vacuum filtration redissolved in EtOAc (50 mL) concentrated onto silica gel Purification by chromatography (20 to 100% EtOAc:hexanes)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a solution of 2-propen-1-yl {3-[(2-chloro-4-pyrimidinyl)acetyl]-2-fluorophenyl}carbamate (85 g, 243 mmol) in DMA (700 mL), NBS (43.2 g, 243 mmol) was added at 0° C. The reaction mixture was stirred at rt for 1 h. Then tetrahydro-2H-pyran-4-carbothioamide (42.3 g, 291.6 mmol) was added at rt. The mixture was stirred at 60° C. for 1.5 h. The mixture was poured into water and extracted with EtOAc (400 mL×3). The combined organic layers were washed with water and brine successively, dried over Na2SO4, filtered and concentrated under reduced pressure to give the crude product, which was purified by column chromatography on silica gel (DCM:petroleum ether 2:1) to afford the title compound. (40 g, 35% yield). 1H NMR (400 MHz, DMSO-d6) δ ppm 9.48-9.54 (br, 1H), 8.58 (d, J=5.3 Hz, 1H), 7.76-7.83 (m, 1H), 7.23-7.32 (m, 2H), 7.02 (d, J=5.3 Hz, 1H), 5.87-5.98 (m, 1H), 5.27-5.36 (m, 1H), 5.16-5.21 (m, 1H), 4.54-4.60 (m, 2H), 3.87-3.94 (m, 2H), 3.41-3.50 (m, 2H), 3.27-3.37 (m, 1H), 1.97-2.04 (m, 2H), 1.69-1.82 (m, 2H). The mixture was stirred at 60° C. for 1.5 h extracted with EtOAc (400 mL×3) The combined organic layers were washed with water and brine successively dried over Na2SO4 filtered concentrated under reduced pressure to give the crude product, which was purified by column chromatography on silica gel (DCM:petroleum ether 2:1)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a solution of N-{3-[(2-chloro-4-pyrimidinyl)acetyl]-2-fluorophenyl}-2,6-difluorobenzenesulfonamide (5.00 g, 11.3 mmol) in DMA (47.2 mL) was added NBS (2.115 g, 11.88 mmol). The reaction stirred 30 min at rt and then tetrahydro-2H-pyran-4-carbothioamide (2.137 g, 14.71 mmol) was added. The reaction stirred 16 h at rt. The reaction mixture was poured into water (500 mL), causing precipitation of a solid. The solid was collected by vacuum filtration, re-dissolved in EtOAc (200 mL), and concentrated onto silica gel. Purification by ISCO chromatography (20 to 100% EtOAc:hexanes) afforded the title compound (3.58 g, 5.87 mmol, 51.9% yield) as a light orange solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 10.93 (s, 1H), 8.55 (d, J=5.3 Hz, 1H), 7.58-7.79 (m, 1H), 7.38-7.52 (m, 2H), 7.33 (t, J=7.9 Hz, 1H), 7.24 (t, J=9.1 Hz, 2H), 6.87 (d, J=5.1 Hz, 1H), 3.84-4.00 (m, 2H), 3.41-3.54 (m, 2H), 3.31-3.39 (m, 1H), 1.92-2.13 (m, 2H), 1.66-1.91 (m, 2H); m/z (ESI): 567.03 [M+H]+. The reaction stirred 16 h at rt precipitation of a solid The solid was collected by vacuum filtration re-dissolved in EtOAc (200 mL) concentrated onto silica gel Purification by ISCO chromatography (20 to 100% EtOAc:hexanes)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution of tetrahydro-2H-pyran-4-carboxamide (9.47 g, 73.3 mmol) and Lawesson's reagent (14.83 g, 36.7 mmol) in THF (98 mL) was heated to reflux for 6 h. The reaction was cooled to rt, poured into saturated aqueous NaHCO3 (200 mL) and extracted with diethyl ether (4×100 mL). The combined organic extracts were dried over Na2SO4, filtered, and concentrated. The residual solid was triturated with 1:1 EtOAc:hexanes (100 mL) and filtered to collect the solid. The filtrate was concentrated and re-subjected to trituration and filtration using the same conditions. The combined solids were dried under vacuum to afford tetrahydro-2H-pyran-4-carbothioamide (4.91 g, 32.1 mmol, 43.8% yield) as a white solid. 1H NMR (400 MHz, CDCl3) δ ppm 7.49 (br. s., 1H), 6.84 (br. s., 1H), 3.94-4.32 (m, 2H), 3.31-3.62 (m, 2H), 2.52-3.03 (m, 1H), 1.81-1.93 (m, 4H). to reflux for 6 h extracted with diethyl ether (4×100 mL) The combined organic extracts were dried over Na2SO4 filtered concentrated The residual solid was triturated with 1:1 EtOAc hexanes (100 mL) and filtered to collect the solid The filtrate was concentrated re-subjected to trituration and filtration The combined solids were dried under vacuum

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Recrystallized NBS (1.56 g, 8.8 mmol) was added to a suspension of N-{2-chloro-3-[(E)-2-(2-chloro-4-pyrimidinyl)-1-hydroxyethenyl]phenyl}-2,6-difluorobenzenesulfonamide (4.02 g, 8.80 mmol) in DMA (15 mL) in an ice-bath. The reaction was immediately removed from the ice bath and allowed to warm to rt over 0.5 h. Tetrahydro-2H-pyran-4-carbothioamide (1.27 g, 8.80 mmol) was added and the reaction warmed in an oil bath (rt to 65° C.). The reaction was diluted with water (100 mL) which caused the precipitation of a yellow solid. The solid was then dissolved by the addition of EtOAc (100 mL) and the phases separated. The aqueous phase was extracted with EtOAc (50 mL). The combined organic phase was filtered through Whatman 1 PS (phase separating) paper and concentrated under vacuum to a crude orange residue. The residue was purified by silica gel chromatography eluting with 0-100% EtOAc/hexanes to give the title compound of Step A as a bright yellow solid (2.56 g; 50.1% yield). 1H NMR (400 MHz, DMSO-d6) δ ppm 10.88 (s, 1H), 8.55 (d, J=5.4 Hz, 1H), 7.62-7.74 (m, 1H), 7.48-7.57 (m, 2H), 7.42-7.47 (m, 1H), 7.22 (t, J=9.1 Hz, 2H), 6.54 (d, J=5.3 Hz, 1H), 3.92 (d, J=11.0 Hz, 2H), 3.41-3.51 (m, 2H), 2.03 (br. s., 2H), 1.69-1.83 (m, J=12.1, 12.1, 11.9, 4.2 Hz, 2H). The reaction was immediately removed from the ice bath the reaction warmed in an oil bath (rt to 65° C.) the precipitation of a yellow solid The solid was then dissolved by the addition of EtOAc (100 mL) the phases separated The aqueous phase was extracted with EtOAc (50 mL) The combined organic phase was filtered through Whatman 1 PS (phase separating) paper concentrated under vacuum to a crude orange residue The residue was purified by silica gel chromatography eluting with 0-100% EtOAc/hexanes

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Recrystallized NBS (1.56 g, 8.8 mmol) was added to a suspension of N-{2-chloro-3-[(E)-2-(2-chloro-4-pyrimidinyl)-1-hydroxyethenyl]phenyl}-2,6-difluorobenzenesulfonamide (4.02 g, 8.80 mmol) in DMA (15 mL) in an ice-bath. The reaction was immediately removed from the ice bath and allowed to warm to rt over 0.5 h. Tetrahydro-2H-pyran-4-carbothioamide (1.27 g, 8.80 mmol) was added and the reaction warmed in an oil bath (rt to 65° C.). The reaction was diluted with water (100 mL) which caused the precipitation of a yellow solid. The solid was then dissolved by the addition of EtOAc (100 mL) and the phases separated. The aqueous phase was extracted with EtOAc (50 mL). The combined organic phase was filtered through Whatman 1 PS (phase separating) paper and concentrated under vacuum to a crude orange residue. The residue was purified by silica gel chromatography eluting with 0-100% EtOAc/hexanes to give the title compound of Step A as a bright yellow solid (2.56 g; 50.1% yield). 1H NMR (400 MHz, DMSO-d6) δ ppm 10.88 (s, 1H), 8.55 (d, J=5.4 Hz, 1H), 7.62-7.74 (m, 1H), 7.48-7.57 (m, 2H), 7.42-7.47 (m, 1H), 7.22 (t, J=9.1 Hz, 2H), 6.54 (d, J=5.3 Hz, 1H), 3.92 (d, J=11.0 Hz, 2H), 3.41-3.51 (m, 2H), 2.03 (br. s., 2H), 1.69-1.83 (m, J=12.1, 12.1, 11.9, 4.2 Hz, 2H). The reaction was immediately removed from the ice bath the reaction warmed in an oil bath (rt to 65° C.) the precipitation of a yellow solid The solid was then dissolved by the addition of EtOAc (100 mL) the phases separated The aqueous phase was extracted with EtOAc (50 mL) The combined organic phase was filtered through Whatman 1 PS (phase separating) paper concentrated under vacuum to a crude orange residue The residue was purified by silica gel chromatography eluting with 0-100% EtOAc/hexanes

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a solution of N-{5-[(2-chloro-4-pyrimidinyl)acetyl]-2-fluorophenyl}-2,5-difluorobenzenesulfonamide (0.910 g, 2.06 mmol) (prepared in a manner analogous to Intermediate 35) in DMA (8.24 mL) was added NBS (0.385 g, 2.16 mmol). The reaction stirred 30 min at rt and then tetrahydro-2H-pyran-4-carbothioamide (0.389 g, 2.68 mmol) was added. The reaction stirred 16 h at rt. The reaction mixture was poured into water (150 mL), causing precipitation of a solid. The solid was collected by vacuum filtration, redissolved in EtOAc (50 mL), and concentrated onto silica gel. Purification by chromatography (20 to 100% EtOAc:hexanes) afforded the title compound (690 mg, 1.21 mmol, 58.5% yield) as a yellow solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 10.86 (s, 1H), 8.58 (d, J=5.3 Hz, 1H), 7.45-7.69 (m, 4H), 7.42 (dd, J=7.5, 2.0 Hz, 1H), 7.32 (dd, J=10.1, 8.8 Hz, 1H), 7.14 (d, J=5.3 Hz, 1H), 3.95 (dd, J=11.7, 2.0 Hz, 2H), 3.40-3.56 (m, 2H), 3.25-3.41 (m, 1H), 2.02 (dd, J=12.9, 1.6 Hz, 2H), 1.65-1.86 (m, 2H). MS (ESI): 567.09 [M+H]+. The reaction stirred 16 h at rt precipitation of a solid The solid was collected by vacuum filtration redissolved in EtOAc (50 mL) concentrated onto silica gel Purification by chromatography (20 to 100% EtOAc:hexanes)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a solution of N-{5-[(2-chloro-4-pyrimidinyl)acetyl]-2-fluorophenyl}-2,5-difluorobenzenesulfonamide (0.910 g, 2.06 mmol) (prepared in a manner analogous to Intermediate 35) in DMA (8.24 mL) was added NBS (0.385 g, 2.16 mmol). The reaction stirred 30 min at rt and then tetrahydro-2H-pyran-4-carbothioamide (0.389 g, 2.68 mmol) was added. The reaction stirred 16 h at rt. The reaction mixture was poured into water (150 mL), causing precipitation of a solid. The solid was collected by vacuum filtration, redissolved in EtOAc (50 mL), and concentrated onto silica gel. Purification by chromatography (20 to 100% EtOAc:hexanes) afforded the title compound (690 mg, 1.21 mmol, 58.5% yield) as a yellow solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 10.86 (s, 1H), 8.58 (d, J=5.3 Hz, 1H), 7.45-7.69 (m, 4H), 7.42 (dd, J=7.5, 2.0 Hz, 1H), 7.32 (dd, J=10.1, 8.8 Hz, 1H), 7.14 (d, J=5.3 Hz, 1H), 3.95 (dd, J=11.7, 2.0 Hz, 2H), 3.40-3.56 (m, 2H), 3.25-3.41 (m, 1H), 2.02 (dd, J=12.9, 1.6 Hz, 2H), 1.65-1.86 (m, 2H). MS (ESI): 567.09 [M+H]+. The reaction stirred 16 h at rt precipitation of a solid The solid was collected by vacuum filtration redissolved in EtOAc (50 mL) concentrated onto silica gel Purification by chromatography (20 to 100% EtOAc:hexanes)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a solution of 2-propen-1-yl {3-[(2-chloro-4-pyrimidinyl)acetyl]-2-fluorophenyl}carbamate (85 g, 243 mmol) in DMA (700 mL), NBS (43.2 g, 243 mmol) was added at 0° C. The reaction mixture was stirred at rt for 1 h. Then tetrahydro-2H-pyran-4-carbothioamide (42.3 g, 291.6 mmol) was added at rt. The mixture was stirred at 60° C. for 1.5 h. The mixture was poured into water and extracted with EtOAc (400 mL×3). The combined organic layers were washed with water and brine successively, dried over Na2SO4, filtered and concentrated under reduced pressure to give the crude product, which was purified by column chromatography on silica gel (DCM:petroleum ether 2:1) to afford the title compound. (40 g, 35% yield). 1H NMR (400 MHz, DMSO-d6) δ ppm 9.48-9.54 (br, 1H), 8.58 (d, J=5.3 Hz, 1H), 7.76-7.83 (m, 1H), 7.23-7.32 (m, 2H), 7.02 (d, J=5.3 Hz, 1H), 5.87-5.98 (m, 1H), 5.27-5.36 (m, 1H), 5.16-5.21 (m, 1H), 4.54-4.60 (m, 2H), 3.87-3.94 (m, 2H), 3.41-3.50 (m, 2H), 3.27-3.37 (m, 1H), 1.97-2.04 (m, 2H), 1.69-1.82 (m, 2H). The mixture was stirred at 60° C. for 1.5 h extracted with EtOAc (400 mL×3) The combined organic layers were washed with water and brine successively dried over Na2SO4 filtered concentrated under reduced pressure to give the crude product, which was purified by column chromatography on silica gel (DCM:petroleum ether 2:1)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a solution of 2-propen-1-yl {3-[(2-chloro-4-pyrimidinyl)acetyl]-2-fluorophenyl}carbamate (85 g, 243 mmol) in DMA (700 mL), NBS (43.2 g, 243 mmol) was added at 0° C. The reaction mixture was stirred at rt for 1 h. Then tetrahydro-2H-pyran-4-carbothioamide (42.3 g, 291.6 mmol) was added at rt. The mixture was stirred at 60° C. for 1.5 h. The mixture was poured into water and extracted with EtOAc (400 mL×3). The combined organic layers were washed with water and brine successively, dried over Na2SO4, filtered and concentrated under reduced pressure to give the crude product, which was purified by column chromatography on silica gel (DCM:petroleum ether 2:1) to afford the title compound. (40 g, 35% yield). 1H NMR (400 MHz, DMSO-d6) δ ppm 9.48-9.54 (br, 1H), 8.58 (d, J=5.3 Hz, 1H), 7.76-7.83 (m, 1H), 7.23-7.32 (m, 2H), 7.02 (d, J=5.3 Hz, 1H), 5.87-5.98 (m, 1H), 5.27-5.36 (m, 1H), 5.16-5.21 (m, 1H), 4.54-4.60 (m, 2H), 3.87-3.94 (m, 2H), 3.41-3.50 (m, 2H), 3.27-3.37 (m, 1H), 1.97-2.04 (m, 2H), 1.69-1.82 (m, 2H). The mixture was stirred at 60° C. for 1.5 h extracted with EtOAc (400 mL×3) The combined organic layers were washed with water and brine successively dried over Na2SO4 filtered concentrated under reduced pressure to give the crude product, which was purified by column chromatography on silica gel (DCM:petroleum ether 2:1)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a solution of N-{3-[(2-chloro-4-pyrimidinyl)acetyl]-2-fluorophenyl}-2,6-difluorobenzenesulfonamide (5.00 g, 11.3 mmol) in DMA (47.2 mL) was added NBS (2.115 g, 11.88 mmol). The reaction stirred 30 min at rt and then tetrahydro-2H-pyran-4-carbothioamide (2.137 g, 14.71 mmol) was added. The reaction stirred 16 h at rt. The reaction mixture was poured into water (500 mL), causing precipitation of a solid. The solid was collected by vacuum filtration, re-dissolved in EtOAc (200 mL), and concentrated onto silica gel. Purification by ISCO chromatography (20 to 100% EtOAc:hexanes) afforded the title compound (3.58 g, 5.87 mmol, 51.9% yield) as a light orange solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 10.93 (s, 1H), 8.55 (d, J=5.3 Hz, 1H), 7.58-7.79 (m, 1H), 7.38-7.52 (m, 2H), 7.33 (t, J=7.9 Hz, 1H), 7.24 (t, J=9.1 Hz, 2H), 6.87 (d, J=5.1 Hz, 1H), 3.84-4.00 (m, 2H), 3.41-3.54 (m, 2H), 3.31-3.39 (m, 1H), 1.92-2.13 (m, 2H), 1.66-1.91 (m, 2H); m/z (ESI): 567.03 [M+H]+. The reaction stirred 16 h at rt precipitation of a solid The solid was collected by vacuum filtration re-dissolved in EtOAc (200 mL) concentrated onto silica gel Purification by ISCO chromatography (20 to 100% EtOAc:hexanes)