tert-Butyl 3-iodobenzylcarbamate

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

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

Conditions: temp:120.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of tert-butyl-3-iodobenzylcarbamate (550 mg, 1.65 mmol) in Dioxane (1.2 mL) and DMSO (1.2 mL) was added CuI (16 mg, 0.083 mmol), (1S,2S)—N1,N2-dimethylcyclohexane-1,2-diamine (0.052 ml, 0.33 mmol), pyrazole (135 mg, 1.98 mmol) and K2CO3 (479 mg, 3.47 mmol). After stirring at 120° C. for 3 h, it was concentrated and the residue was purified by column chromatography to give tert-butyl-3-(1H-pyrazol-1-yl)benzylcarbamate (317 mg). it was concentrated the residue was purified by column chromatography

Conditions: temp:120.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of tert-butyl-3-iodobenzylcarbamate (550 mg, 1.65 mmol) in Dioxane (1.2 mL) and DMSO (1.2 mL) was added CuI (16 mg, 0.083 mmol), (1S,2S)—N1,N2-dimethylcyclohexane-1,2-diamine (0.052 ml, 0.33 mmol), pyrazole (135 mg, 1.98 mmol) and K2CO3 (479 mg, 3.47 mmol). After stirring at 120° C. for 3 h, it was concentrated and the residue was purified by column chromatography to give tert-butyl-3-(1H-pyrazol-1-yl)benzylcarbamate (317 mg). it was concentrated the residue was purified by column chromatography

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of tert-butyl-3-iodobenzylcarbamate (166 mg, 0.50 mmol) in Dioxane (1.5 mL) was added Pd(PPh3)4 (58 mg, 0.05 mmol) and 2-(tributylstannyl)pyridine (275 mg, 0.75 mmol). After stirring at 100° C. for 2 h, it was concentrated and the residue was purified by column chromatography to give tert-butyl-3-(pyridin-2-yl)benzylcarbamate (111 mg). it was concentrated the residue was purified by column chromatography

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of tert-butyl-3-iodobenzylcarbamate (166 mg, 0.50 mmol) in Dioxane (1.5 mL) was added Pd(PPh3)4 (58 mg, 0.05 mmol) and 2-(tributylstannyl)pyridine (275 mg, 0.75 mmol). After stirring at 100° C. for 2 h, it was concentrated and the residue was purified by column chromatography to give tert-butyl-3-(pyridin-2-yl)benzylcarbamate (111 mg). it was concentrated the residue was purified by column chromatography

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: In a similar manner as described for Example 41, 5-methyl-7-[3-(trifluoromethyl)phenyl]imidazo[5,1-f][1,2,4]triazin-2-amine (Intermediate 45) (0.025 g, 0.09 mmol), tert-butyl 3-iodobenzylcarbamate (0.028 g, 0.09 mmol), Pd2(dba)3 (0.008 g, 0.01 mmol), 2-(Di-t-butylphosphino)biphenyl (0.008 g, 0.03 mmol), and NaOtBu (0.011 g, 0.11 mmol) in 1,4-dioxane (1 mL) gave tert-butyl 3-({5-methyl-7-[3-(trifluoromethyl)phenyl]imidazo[5,1-f][1,2,4]triazin-2-yl}amino)benzylcarbamate (0.014 g) as a yellow solid. 1H NMR (CDCl3): δ8.82 (s, 1H), 8.80 (s, 1H), 8.66 (d, J=7.3 Hz, 1H), 7.79-7.73 (m, 1H), 7.70-7.60 (m, 2H), 7.42-7.28 (m, 4H), 7.18 (bs, 1H), 7.04 (d, J=7.7 Hz, 1H), 4.32 (bs, 2H), 2.61 (s, 3H), 1.46 (s, 9H). MS m/z 499 (M+1).

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

Procedure: In a similar manner as described for Example 41, 5-methyl-7-[3-(trifluoromethyl)phenyl]imidazo[5,1-f][1,2,4]triazin-2-amine (Intermediate 45) (0.025 g, 0.09 mmol), tert-butyl 3-iodobenzylcarbamate (0.028 g, 0.09 mmol), Pd2(dba)3 (0.008 g, 0.01 mmol), 2-(Di-t-butylphosphino)biphenyl (0.008 g, 0.03 mmol), and NaOtBu (0.011 g, 0.11 mmol) in 1,4-dioxane (1 mL) gave tert-butyl 3-({5-methyl-7-[3-(trifluoromethyl)phenyl]imidazo[5,1-f][1,2,4]triazin-2-yl}amino)benzylcarbamate (0.014 g) as a yellow solid. 1H NMR (CDCl3): δ8.82 (s, 1H), 8.80 (s, 1H), 8.66 (d, J=7.3 Hz, 1H), 7.79-7.73 (m, 1H), 7.70-7.60 (m, 2H), 7.42-7.28 (m, 4H), 7.18 (bs, 1H), 7.04 (d, J=7.7 Hz, 1H), 4.32 (bs, 2H), 2.61 (s, 3H), 1.46 (s, 9H). MS m/z 499 (M+1).

Conditions: temp:85.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of (3-iodo-benzyl)-carbamic acid tert-butyl ester (272 mg, 0.816 mmol), 4-(2-aminoethyl)morpholine (0.16 mL, 1.225 mmol), K2CO3 (232 mg, 1.679 mmol), CuI (19 mg, 0.10 mmol), L-proline (19 mg, 0.163 mmol) and DMSO (5 mL) was heated at 85° C. for 1 h. The reaction was cooled, poured onto water and the aqueous layer extracted with EtOAc (×3). The organic layers were combined and washed with water, brine and dried (Na2SO4). Chromatography (MeOH/EtOAc) afforded [3-(2-morpholin-4-yl-ethylamino)-benzyl]-carbamic acid isopropyl ester (200 mg) as an orange viscous oil. m/z (M+1) 336.16. The reaction was cooled poured onto water the aqueous layer extracted with EtOAc (×3) washed with water, brine dried (Na2SO4)

Conditions: temp:85.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of (3-iodo-benzyl)-carbamic acid tert-butyl ester (272 mg, 0.816 mmol), 4-(2-aminoethyl)morpholine (0.16 mL, 1.225 mmol), K2CO3 (232 mg, 1.679 mmol), CuI (19 mg, 0.10 mmol), L-proline (19 mg, 0.163 mmol) and DMSO (5 mL) was heated at 85° C. for 1 h. The reaction was cooled, poured onto water and the aqueous layer extracted with EtOAc (×3). The organic layers were combined and washed with water, brine and dried (Na2SO4). Chromatography (MeOH/EtOAc) afforded [3-(2-morpholin-4-yl-ethylamino)-benzyl]-carbamic acid isopropyl ester (200 mg) as an orange viscous oil. m/z (M+1) 336.16. The reaction was cooled poured onto water the aqueous layer extracted with EtOAc (×3) washed with water, brine dried (Na2SO4)