2-(3-bromo-2-oxopropyl)isoindole-1,3-dione

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To 2-((R)-1-amino-2-methyl-propyl)-3-benzyl-7-chloro-chromen-4-one (0.5 g, 1.5 mMol) and K2CO3 (0.21 g, 1.5 mMol) in DMF (10 mL) was added N-(3-bromo-2-oxopropyl)-phthalimide (0.45 g, 1.5 mMol) (Nair et al.; J. Org. Chem.; 40; 1975; 1745). The reaction was stirred at RT for 3 h, concentrated under vacuum, taken up in EtOAc, washed with water, brine, dried (Na2SO4) and evaporated to give the title compound (0.88 g, 100%) as a yellow solid: MS (ES) m/e 543.2 (M+H)+. concentrated under vacuum washed with water, brine dried (Na2SO4) evaporated

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To 2-((R)-1-amino-2-methyl-propyl)-3-benzyl-7-chloro-3H-quinazolin-4-one (5.0 g, 14.6 mMol) and K2CO3 (2.1 g, 15.2 mMol) in DMF (50 mL) was added N-(3-Bromo-2-oxopropyl)-phthalimide (4.5 g, 14.8 mMol) (Nair et al.; J. Org. Chem.; 40; 1975; 1745). The reaction was stirred at RT for 3 h, concentrated under vacuum, taken up in EtOAc, washed with water, brine, dried (Na2SO4) and evaporated to give the title compound (7.94 g, 14.6 mMol) as an off-white solid: MS (ES) m/e 543.2 (M+H)+. concentrated under vacuum washed with water, brine dried (Na2SO4) evaporated

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To 2-((R)-1-amino-2-methyl-propyl)-3-benzyl-7-chloro-3H-quinazolin-4-one (5.0 g, 14.6 mMol) and K2CO3 (2.1 g, 15.2 mMol) in DMF (50 mL) was added N-(3-Bromo-2-oxopropyl)-phthalimide (4.5 g, 14.8 mMol) (Nair et al.; J. Org. Chem.; 40; 1975; 1745). The reaction was stirred at RT for 3 h, concentrated under vacuum, taken up in EtOAc, washed with water, brine, dried (Na2SO4) and evaporated to give the title compound (7.94 g, 14.6 mMol) as an off-white solid: MS (ES) m/e 543.2 (M+H)+. concentrated under vacuum washed with water, brine dried (Na2SO4) evaporated

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To 2-((R)-1-amino-2-methyl-propyl)-3-benzyl-7-chloro-chromen-4-one (0.5 g, 1.5 mMol) and K2CO3 (0.21 g, 1.5 mMol) in DMF (10 mL) was added N-(3-bromo-2-oxopropyl)-phthalimide (0.45 g, 1.5 mMol) (Nair et al.; J. Org. Chem.; 40; 1975; 1745). The reaction was stirred at RT for 3 h, concentrated under vacuum, taken up in EtOAc, washed with water, brine, dried (Na2SO4) and evaporated to give the title compound (0.88 g, 100%) as a yellow solid: MS (ES) m/e 543.2 (M+H)+. concentrated under vacuum washed with water, brine dried (Na2SO4) evaporated

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To 2-((R)-1-amino-2-methyl-propyl)-3-benzyl-7-chloro-3H-quinazolin-4-one (5.0 g, 14.6 mMol) and K2CO3 (2.1 g, 15.2 mMol) in DMF (50 mL) was added N-(3-Bromo-2-oxopropyl)-phthalimide (4.5 g, 14.8 mMol) (Nair et al.; J. Org. Chem.; 40; 1975; 1745). The reaction was stirred at RT for 3 h, concentrated under vacuum, taken up in EtOAc, washed with water, brine, dried (Na2SO4) and evaporated to give the title compound (7.94 g, 14.6 mMol) as an off-white solid: MS (ES) m/e 543.2 (M+H)+. concentrated under vacuum washed with water, brine dried (Na2SO4) evaporated

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a mixture of 4-(4-chlorobenzyl)-2-(pyridin-4-yl)thiazole-5-carboximidamide hydrochloride (112 mg, 0.306 mmol) in DMF (2.96 mL) was added sodium carbonate (162 mg, 1.53 mmol) and 2-(3-bromo-2-oxopropyl)isoindoline-1,3-dione (95.0 mg, 0.337 mmol) and the resulting mixture was heated at 100 degrees for 4 hours. The reaction was cooled and taken up in ethyl acetate (30 mL) and water (5 mL). The layers were separated and the organic layer was washed with water (3×5 mL). The organic layer was dried, filtered and concentrated in vacuo. The residue was purified by silica gel chromatography (MeOH/DCM=0/100→10/90) to give 47 mg (30% yield) of the title compound. LC/MS (FA) ES+ 512. 514. 1H NMR (300 MHz, DMSO-d6) δ: 12.67 (bs, 1H), 8.69-8.67 (m, 2H), 7.91-7.79 (m, 6H), 7.27-7.24 (m, 3H), 7.11-7.08 (m, 2H), 4.77 (s, 2H), 4.45 (s, 2H). the resulting mixture was heated at 100 degrees for 4 hours The reaction was cooled The layers were separated the organic layer was washed with water (3×5 mL) The organic layer was dried filtered concentrated in vacuo The residue was purified by silica gel chromatography (MeOH/DCM=0/100→10/90)

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a mixture of 4-(4-chlorobenzyl)-2-(pyridin-4-yl)thiazole-5-carboximidamide hydrochloride (112 mg, 0.306 mmol) in DMF (2.96 mL) was added sodium carbonate (162 mg, 1.53 mmol) and 2-(3-bromo-2-oxopropyl)isoindoline-1,3-dione (95.0 mg, 0.337 mmol) and the resulting mixture was heated at 100 degrees for 4 hours. The reaction was cooled and taken up in ethyl acetate (30 mL) and water (5 mL). The layers were separated and the organic layer was washed with water (3×5 mL). The organic layer was dried, filtered and concentrated in vacuo. The residue was purified by silica gel chromatography (MeOH/DCM=0/100→10/90) to give 47 mg (30% yield) of the title compound. LC/MS (FA) ES+ 512. 514. 1H NMR (300 MHz, DMSO-d6) δ: 12.67 (bs, 1H), 8.69-8.67 (m, 2H), 7.91-7.79 (m, 6H), 7.27-7.24 (m, 3H), 7.11-7.08 (m, 2H), 4.77 (s, 2H), 4.45 (s, 2H). the resulting mixture was heated at 100 degrees for 4 hours The reaction was cooled The layers were separated the organic layer was washed with water (3×5 mL) The organic layer was dried filtered concentrated in vacuo The residue was purified by silica gel chromatography (MeOH/DCM=0/100→10/90)

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of phthalimidoacetone (4.04 g, 19.9 mmol) in methanol (100 mL) was added urea (1.19 g, 19.9 mmol) and bromine (3.18 g, 19.9 mmol) and the resulting solution was stirred at room temperature overnight. The reaction was concentrated in vacuo and the residue taken up in DCM (150 mL) and water (50 mL). The layers were separated and the organic layer was dried, filtered, and concentrated in vacuo. The residue was purified by silica gel chromatography (EA/hexanes=0/100→50/50) to give 159 mg (3% yield) of the title compound. 1H NMR (300 MHz, CDCl3) δ: 7.90-7.86 (m, 2H), 7.79-7.73 (m, 2H), 4.78 (s, 2H), 4.01 (s, 2H). The reaction was concentrated in vacuo The layers were separated the organic layer was dried filtered concentrated in vacuo The residue was purified by silica gel chromatography (EA/hexanes=0/100→50/50)