7-溴-5-(2-氟苯基)-3-甲基-1,3-二氢-1,4-苯二氮卓类-2-酮

反应条件: temp:-10.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 7-Bromo-5-(2′-fluorophenyl)-3-methyl-1,3-dihydro-benzo[e][1,4]diazepin-2-one 137 (3.78 g, 10.88 mmol) was suspended in dry THF (150 mL) and cooled to −10° C. Sodium hydride (60% dispersion in mineral oil, 0.52 g, 13.07 mol) was added into the suspension in one portion. The reaction mixture was allowed to stir and then warm to rt over 3 h period. The reaction mixture was again cooled to −10° C. and diethyl chlorophosphate (2.65 mL, 17.42 mmol) was added. The cooling bath was then removed and stirring continued for 3 h. During this time, sodium hydride (60% dispersion in mineral oil, 0.61 g, 15.24 mmol) was suspended in dry THF (60 mL) at −10° C. in another flask. Ethyl isocyanoacetate (1.43 mL, 13.07 mmol) was added to the NaH/THF suspension and this mixture allowed to stir for 3 h. After 3 h the first flask was cooled to −30° C. with a cooling bath and the mixture in the second reaction flask was added to the first flask via a cannula. The reaction mixture was allowed to stir for 24 h, after which it was cooled to 0° C. with an ice-water bath and slowly quenched 5 with acetic acid (5 mL). Water was then added to the reaction mixture and this was extracted with EtOAc. The EtOAc layers were combined, washed with aq NaHCO3, brine and dried (Na2SO4). After removal of the solvent under reduced pressure the solid was purified by flash chromatography (silica gel, EtOAc:hexane: gradient elution 1:2, 1:1, 2:1). The ethyl ester 138 was a white solid (1.82 g, 38%). mp 190-192° C.; IR (KBr, cm−1) 3316, 2925, 1693, 1621, 1485, 1448, 1371; 1H NMR (CDCl3) δ 7.92 (s, 1 H), 7.72 (dd, J=8.5, 1.5 Hz, 1 H), 7.6 (t, J=6.9 Hz, 1 H), 7.48 (d, J=8.5 Hz, 1 H), 7.42-7.49 (m, 2 H), 7.23-7.29 (m, 1 H), 7.05 (t, J=9.3 Hz, 1 H), 6.71 (q, J=7.3 Hz, 1 H), 4.41 (m, 2 H), 1.42 (t, J=7.1 Hz, 3 H), 1.29 (d, 3 H). MS (EI) m/e (relative intensity) 442 (M+, 5), 428 (7), 381 (58), 355 (100), 303 (37); [α]26D=−10.9 (c 0.54, EtOAc). warm to rt over 3 h period The reaction mixture was again cooled to −10° C. The cooling bath was then removed stirring to stir for 3 h After 3 h the first flask was cooled to −30° C. with a cooling bath the mixture in the second reaction flask was added to the first flask via a cannula to stir for 24 h after which it was cooled to 0° C. with an ice-water bath slowly quenched 5 with acetic acid (5 mL) Water was then added to the reaction mixture this was extracted with EtOAc washed with aq NaHCO3, brine dried (Na2SO4) After removal of the solvent under reduced pressure the solid was purified by flash chromatography (silica gel, EtOAc:hexane: gradient elution 1:2, 1:1, 2:1)

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

实验步骤: To a stirred solution of the benzophenone 136 (30 g, 64.4 mmol) in CHCl3 (300 mL) at rt, hydrogen chloride gas was added slowly. After 20 min, the addition was stopped and the solution was allowed to stir overnight at rt. The reaction mixture was then washed with a saturated solution of sodium bicarbonate (2×70 mL) and water (2×70 mL). The organic layer was concentrated under reduced pressure. The residual oil was dissolved in methanol-water (1:1, 300 mL) and the pH was adjusted to 8.5 by the addition of aq sodium hydroxide (1 N). The reaction mixture was allowed to stir for 10 h at rt. The solution was then concentrated under reduced pressure and water (100 mL) was added. The solution was extracted with CH2Cl2 (3×50 mL), and the organic layer was dried (Na2SO4) and concentrated under reduced pressure. The crude solid 137 was purified by recrystallization from methanol/water to provided 137 (18.2 g, 82%). mp 183-185° C.; IR (KBr, cm−1) 2928, 1694, 1611, 1479, 1450, 1377, 1315; 1H NMR (CDCl3) δ 9.50 (bs, 1 H), 7.62-7.65 (m, 2 H), 7.50 (q, J=6.5 Hz, 1H), 7.40 (d, J=2.0 Hz, 1 H), 7.29 (t, J=7.5 Hz 1 H) 7.15 (d, J=8.6 Hz, 1 H), 7.11 (t, J=8.9 Hz, 1 H), 3.84 (q, J=6.5 Hz, 1 H), 1.82 (d, J=6.5 Hz, 3 H); MS (EI) m/e (relative intensity) 348 (M++1, 23), 347 (M+, 38), 346 (24), 345 (36), 329 (19), 327 (20), 307 (40), 306 (41), 305(100), 304 (37), 303 (63); [α]26D=−169.1 (c 0.71, EtOAc). the addition The reaction mixture was then washed with a saturated solution of sodium bicarbonate (2×70 mL) and water (2×70 mL) The organic layer was concentrated under reduced pressure The residual oil was dissolved in methanol-water (1:1, 300 mL) the pH was adjusted to 8.5 by the addition of aq sodium hydroxide (1 N) to stir for 10 h at rt The solution was then concentrated under reduced pressure and water (100 mL) was added The solution was extracted with CH2Cl2 (3×50 mL) the organic layer was dried (Na2SO4) concentrated under reduced pressure The crude solid 137 was purified by recrystallization from methanol/water

反应条件: temp:-10.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 7-Bromo-5-(2-fluorophenyl)-3-methyl-1,3-dihydro-benzo[e][1,4]diazepin-2-one 117 (3.78 g, 10.88 mmol) was suspended in dry THF (150 mL) and cooled to −10° C. Sodium hydride (60% dispersion in mineral oil, 0.52 g, 13.07 mol) was added into the suspension in one portion. The reaction mixture was allowed to stir and then warm to rt over a 3 h period. The reaction mixture was again cooled to −10° C. and diethyl chlorophosphate (2.65 mL, 17.42 mmol) was added. The cooling bath was then removed and stirring continued for 3 h. During this time, sodium hydride (60% dispersion in mineral oil, 0.61 g, 15.24 mmol) was suspended in dry THF (60 mL) at −10° C. in another flask. Ethyl isocyanoacetate (1.43 ml, 13.07 mnol) was added to the NaH/THF suspension and this mixture allowed to stir for 3 h. After 3 h the first flask was cooled to −30° C. with a cooling bath and the mixture in the second reaction flask was added to the first flask via a cannula. The reaction mixture was allowed to stir for 24 h, after which it was cooled to 0° C. with an ice-water bath and slowly quenched with acetic acid (5 mL). Water was then added to the reaction mixture and this was extracted with EtOAc. The EtOAc layers were combined, washed with aq NaHCO3, brine and dried (Na2SO4). After removal of the solvent under reduced pressure, the solid was purified by flash chromatography (silica gel, EtOAc:hexane: gradient elution 1:2, 1:1, 2:1). The ethyl ester 118 was a white solid (1.82 g, 38%). mp 190-192° C.; IR (KBr, cm−1) 3316, 2925, 1693, 1621, 1485, 1448, 1371; 1H NMR (CDCl3) δ 7.92 (s, 1 H), 7.72 (dd, J=8.5, 1.5 Hz, 1 H), 7.6 (t, J=6.9 Hz, 1 H), 7.48 (d, J=8.5 Hz, 1 H), 7.42-7.49 (m, 2 H), 7.23-7.29 (m, 1 H), 7.05 (t, J=9.3 Hz, 1 H), 6.71 (q, J=7.3 Hz, 1 H), 4.41 (m, 2 H), 1.42 (t, J=7.1 Hz, 3 H), 1.29 (d, J=7.2, 3 H). MS (EI) m/e (relative intensity) 442 (M+, 5), 428 (7), 381 (58), 355 (100), 303 (37); [α]26D=10.6 (c 0.53, EtOAc). warm to rt over a 3 h period The reaction mixture was again cooled to −10° C. The cooling bath was then removed stirring to stir for 3 h After 3 h the first flask was cooled to −30° C. with a cooling bath the mixture in the second reaction flask was added to the first flask via a cannula to stir for 24 h after which it was cooled to 0° C. with an ice-water bath slowly quenched with acetic acid (5 mL) Water was then added to the reaction mixture this was extracted with EtOAc washed with aq NaHCO3, brine dried (Na2SO4) After removal of the solvent under reduced pressure the solid was purified by flash chromatography (silica gel, EtOAc:hexane: gradient elution 1:2, 1:1, 2:1)

反应条件: temp:-10.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 7-Bromo-5-(2′-fluorophenyl)-3-methyl-1,3-dihydro-benzo[e][1,4]diazepin-2-one 137 (3.78 g, 10.88 mmol) was suspended in dry THF (150 mL) and cooled to −10° C. Sodium hydride (60% dispersion in mineral oil, 0.52 g, 13.07 mol) was added into the suspension in one portion. The reaction mixture was allowed to stir and then warm to rt over 3 h period. The reaction mixture was again cooled to −10° C. and diethyl chlorophosphate (2.65 mL, 17.42 mmol) was added. The cooling bath was then removed and stirring continued for 3 h. During this time, sodium hydride (60% dispersion in mineral oil, 0.61 g, 15.24 mmol) was suspended in dry THF (60 mL) at −10° C. in another flask. Ethyl isocyanoacetate (1.43 mL, 13.07 mmol) was added to the NaH/THF suspension and this mixture allowed to stir for 3 h. After 3 h the first flask was cooled to −30° C. with a cooling bath and the mixture in the second reaction flask was added to the first flask via a cannula. The reaction mixture was allowed to stir for 24 h, after which it was cooled to 0° C. with an ice-water bath and slowly quenched with acetic acid (5 mL). Water was then added to the reaction mixture and this was extracted with EtOAc. The EtOAc layers were combined, washed with aq NaHCO3, brine and dried (Na2SO4). After removal of the solvent under reduced pressure the solid was purified by flash chromatography (silica gel, EtOAc:hexane: gradient elution 1:2, 1:1, 2:1). The ethyl ester 138 was a white solid (1.82 g, 38%). mp 190-192° C.; IR (KBr, cm−1) 3316, 2925, 1693, 1621, 1485, 1448, 1371; 1H NMR (CDCl3) δ 7.92 (s, 1H), 7.72 (dd, J=8.5, 1.5 Hz, 1H), 7.6 (t, J=6.9 Hz, 1H), 7.48 (d, J=8.5 Hz, 1H), 7.42-7.49 (m, 2H), 7.23-7.29 (m, 1H), 7.05 (t, J=9.3 Hz, 1H), 6.71 (q, J=7.3 Hz, 1H), 4.41 (m, 2H), 1.42 (t, J=7.1 Hz, 3H), 1.29 (d, J=7.2, 3H). MS (EI) m/e (relative intensity) 442 (M+, 5), 428 (7), 381 (58), 355 (100), 303 (37); [α]26D=−10.9 (c 0.54, EtOAc). warm to rt over 3 h period The reaction mixture was again cooled to −10° C. The cooling bath was then removed stirring to stir for 3 h After 3 h the first flask was cooled to −30° C. with a cooling bath the mixture in the second reaction flask was added to the first flask via a cannula to stir for 24 h after which it was cooled to 0° C. with an ice-water bath slowly quenched with acetic acid (5 mL) Water was then added to the reaction mixture this was extracted with EtOAc washed with aq NaHCO3, brine dried (Na2SO4) After removal of the solvent under reduced pressure the solid was purified by flash chromatography (silica gel, EtOAc:hexane: gradient elution 1:2, 1:1, 2:1)

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

实验步骤: To a stirred solution of the benzophenone 136 (30 g, 64.4 mmol) in CHCl3 (300 mL) at rt, hydrogen chloride gas was added slowly. After 20 min, the addition was stopped and the solution was allowed to stir overnight at rt. The reaction mixture was then washed with a saturated solution of sodium bicarbonate (2×70 mL) and water (2×70 mL). The organic layer was concentrated under reduced pressure. The residual oil was dissolved in methanol-water (1:1, 300 mL) and the pH was adjusted to 8.5 by the addition of aq sodium hydroxide (1 N). The reaction mixture was allowed to stir for 10 h at rt. The solution was then concentrated under reduced pressure and water (100 mL) was added. The solution was extracted with CH2Cl2 (3×50 mL), and the organic layer was dried (Na2SO4) and concentrated under reduced pressure. The crude solid 137 was purified by recrystallization from methanol/water to provided 137(18.2 g, 82%). mp 183-185° C.; IR (KBr, cm−1) 2928, 1694, 1611, 1479, 1450, 1377, 1315; 1H NMR(CDCl3) δ 9.50 (bs, 1H), 7.62-7.65 (m, 2H), 7.50 (q, J=6.5 Hz, 1H), 7.40 (d, J=2.0 Hz, 1H), 7.29 (t, J=7.5 Hz 1H) 7.15 (d, J=8.6 Hz, 1H), 7.11 (t, J=8.9 Hz, 1H), 3.84 (q, J=6.5 Hz, 1H), 1.82 (d, J=6.5 Hz, 3H); MS (EI) m/e (relative intensity) 348 (M++1, 23), 347 (M+, 38), 346 (24), 345 (36), 329 (19), 327 (20), 307 (40), 306 (41), 305(100), 304 (37), 303 (63); [α]26D=−169.1 (c 0.71, EtOAc). the addition The reaction mixture was then washed with a saturated solution of sodium bicarbonate (2×70 mL) and water (2×70 mL) The organic layer was concentrated under reduced pressure The residual oil was dissolved in methanol-water (1:1, 300 mL) the pH was adjusted to 8.5 by the addition of aq sodium hydroxide (1 N) to stir for 10 h at rt The solution was then concentrated under reduced pressure and water (100 mL) was added The solution was extracted with CH2Cl2 (3×50 mL) the organic layer was dried (Na2SO4) concentrated under reduced pressure The crude solid 137 was purified by recrystallization from methanol/water

反应条件: temp:-10.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 7-Bromo-5-(2-fluorophenyl)-3-methyl-1,3-dihydro-benzo[e][1,4]diazepin-2-one 117 (3.78 g, 10.88 mmol) was suspended in dry THF (150 mL) and cooled to −10° C. Sodium hydride (60% dispersion in mineral oil, 0.52 g, 13.07 mol) was added into the suspension in one portion. The reaction mixture was allowed to stir and then warm to rt over a 3 h period. The reaction mixture was again cooled to −10° C. and diethyl chlorophosphate (2.65 mL, 17.42 mmol) was added. The cooling bath was then removed and stirring continued for 3 h. During this time, sodium hydride (60% dispersion in mineral oil, 0.61 g, 15.24 mmol) was suspended in dry THF (60 mL) at −10° C. in another flask. Ethyl isocyanoacetate (1.43 ml, 13.07 mmol) was added to the NaH/THF suspension and this mixture allowed to stir for 3 h. After 3 h the first flask was cooled to −30° C. with a cooling bath and the mixture in the second reaction flask was added to the first flask via a cannula. The reaction mixture was allowed to stir for 24 h, after which it was cooled to 0° C. with an ice-water bath and slowly quenched with acetic acid (5 mL). Water was then added to the reaction mixture and this was extracted with EtOAc. The EtOAc layers were combined, washed with aq NaHCO3, brine and dried (Na2SO4). After removal of the solvent under reduced pressure, the solid was purified by flash chromatography (silica gel, EtOAc:hexane: gradient elution 1:2, 1:1, 2:1). The ethyl ester 118 was a white solid (1.82 g, 38%). mp 190-192° C.; IR (KBr, cm−1) 3316, 2925, 1693, 1621, 1485, 1448, 1371; 1H NMR (CDCl3) δ 7.92 (s, 1H), 7.72 (dd, J=8.5, 1.5 Hz, 1H), 7.6 (t, J=6.9 Hz, 1H), 7.48 (d, J=8.5 Hz, 1H), 7.42-7.49 (m, 2H), 7.23-7.29 (m, 1H), 7.05 (t, J=9.3 Hz, 1H), 6.71 (q, J=7.3 Hz, 1H), 4.41 (m, 2H), 1.42 (t, J=7.1 Hz, 3H), 1.29 (d, J=7.2, 3H). MS (EI) m/e (relative intensity) 442 (M+, 5), 428 (7), 381 (58), 355 (100), 303 (37); [α]26D=10.6 (c 0.53, EtOAc). warm to rt over a 3 h period The reaction mixture was again cooled to −10° C. The cooling bath was then removed stirring to stir for 3 h After 3 h the first flask was cooled to −30° C. with a cooling bath the mixture in the second reaction flask was added to the first flask via a cannula to stir for 24 h after which it was cooled to 0° C. with an ice-water bath slowly quenched with acetic acid (5 mL) Water was then added to the reaction mixture this was extracted with EtOAc washed with aq NaHCO3, brine dried (Na2SO4) After removal of the solvent under reduced pressure the solid was purified by flash chromatography (silica gel, EtOAc:hexane: gradient elution 1:2, 1:1, 2:1)

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

实验步骤: To a stirred solution of the benzophenone 116 (30 g, 64.4 mmol) in CHCl3 (300 mL) at rt, hydrogen chloride gas was added slowly. After 20 min, the addition was stopped and the solution was allowed to stir overnight at rt. The reaction mixture was washed with a saturated solution of sodium bicarbonate solution (2×70 mL) and water (2×70 mL). The organic layer was concentrated under reduced pressure. The residual oil was dissolved in methanol-water (1:1, 300 mL) and the pH was adjusted to 8.5 by the addition of aq sodium hydroxide (1 N). The reaction mixture was allowed to stir for 10 h at rt. The solution was then concentrated under reduced pressure and water (100 mL) was added. The solution was extracted with CH2Cl2 (3×50 mL), the organic layer was dried (Na2SO4) and concentrated under reduced pressure. The crude solid 11 was purified by recrystallization from methanol/water to provided 117 (17.8 g, 80%). mp 183-185° C.; IR (KBr, cm−1) 2928, 1694, 1611, 1479, 1450, 1377, 1315; 1H NMR (CDCl3) δ 9.50 (bs, 1H), 7.62-7.65 (m, 2H), 7.50 (q, J=6.5 Hz, 1H), 7.40 (d, J=2.0 Hz, 1H), 7.29 (t, J=7.5 Hz 1H) 7.15 (d, J=8.6 Hz, 1H), 7.11 (t, J=8.9 Hz, 1H), 3.84 (q, J=6.5 Hz, 1H), 1.82 (d, J=6.5 Hz, 3H); MS (EI) m/e (relative intensity) 348 (M++1, 23), 347 (M+, 38), 346 (24), 345 (36), 329 (19), 327 (20), 307 (40), 306 (41), 305(100), 304 (37), 303 (63); [α]26D=168.8 (c 0.73, EtOAc). the addition The reaction mixture was washed with a saturated solution of sodium bicarbonate solution (2×70 mL) and water (2×70 mL) The organic layer was concentrated under reduced pressure The residual oil was dissolved in methanol-water (1:1, 300 mL) the pH was adjusted to 8.5 by the addition of aq sodium hydroxide (1 N) to stir for 10 h at rt The solution was then concentrated under reduced pressure and water (100 mL) was added The solution was extracted with CH2Cl2 (3×50 mL) the organic layer was dried (Na2SO4) concentrated under reduced pressure The crude solid 11 was purified by recrystallization from methanol/water