2-(Dimethylamino)acetyl chloride hydrochloride

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

Procedure: A solution of 3-[2-amino-4-chloro-7-(4-methoxy-3,5-dimethyl-pyridin-2-ylmethyl)-7H-pyrrolo [2,3-d]pyrimidin-5-yl]-prop-2-yn-1-ol (see example 1, 177 mg, 0.48 mmol) in anhydrous pyridine (3 mL) was treated with N,N-dimethylamino-acetyl chloride hydrochloride (113 mg, 0.72 mmol) at rt for 30 min. Addition of toluene (10 mL) caused the formation of a sticky pellet. The toluene solution was discarded, and the pellet was partitioned between water and DCM. The DCM layer was concentrated, and purified by flash chromatography (EtOAc/DCM/Et3N 33:66:1, gradually adding MeOH (0-2%)) to afford the title compound. tR=4.51 min. 1H NMR (CDCl3) δ 8.23 (s, 1H), 7.14 (s, 1H), 5.31 (s, 2H), 5.00 (s, 2H), 4.98 (s, 2H), 3.76 (s, 3H), 3.25 (s, 2H), 2.38 (s, 6H), 2.28 (s, 3H), 2.20 (s, 3H). the pellet was partitioned between water and DCM The DCM layer was concentrated purified by flash chromatography (EtOAc/DCM/Et3N 33:66:1, gradually adding MeOH (0-2%))

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

Procedure: This compound was prepared by using procedures analogous to those described for the synthesis of Example 73, Step 4 starting from N-[3-(7-{1-[3-(cyanomethyl)azetidin-3-yl]-1H-pyrazol-4-yl}imidazo[1,2-b]pyridazin-3-yl)phenyl]-N′-(2,2,2-trifluoroethyl)urea and dimethylaminoacetyl chloride hydrochloride (Lancaster and Cat. No. L18475). LCMS (M+H)+: m/z=581.3. This compound was prepared

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

Procedure: This compound was prepared by using procedures analogous to those described for the synthesis of Example 30 (Step 6) starting from N-{3-[7-(1-piperidin-4-yl-1H-pyrazol-4-yl)imidazo[1,2-b]pyridazin-3-yl]phenyl}-N′-(2,2,2-trifluoroethyl)urea and dimethylaminoacetyl chloride hydrochloride (Lancaster, Cat. No. L18475). LCMS (M+H)+: m/z=570.2. This compound was prepared those described for the synthesis of Example 30 (Step 6)

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

Procedure: A flask was charged with 3-aminobenzene sulfonamide (3.3 g, 19 mmol), and 20 mL of 1:1 acetone:H2O. The solution was stirred at room temperature until the aminobenzene sulfonamide had dissolved. The flask was then cooled in an ice bath and dimethylamino-acetyl chloride HCl (4.6 g, 29 mmol) was added. To the resulting slurry sodium bicarbonate (4.8 g, 57 mmol) was added over a 15 m period. After 30 min the reaction was removed from the ice bath and allowed to stir at room temperature for 15 h. The reaction mixture was then filtered and washed with methanol and acetonitrile. The filtrate was dried on a rotary evaporator to yield 2-(dimethylamino)-N-(3-sulfamoyl-phenyl)acetamide, which was submitted to the next step without further purification. MS (EI) m/z C10H15N3O3S: 258.0 (MH+). had dissolved The flask was then cooled in an ice bath After 30 min the reaction was removed from the ice bath The reaction mixture was then filtered washed with methanol and acetonitrile The filtrate was dried on a rotary evaporator

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

Procedure: A 20 mL vial was charged with 3-(2-bromo-4-fluorophenoxy)-5-(3-methoxyphenylthio)-N-(4-(piperidin-4-yl)thiazol-2-yl)pyridin-2-amine (40 mg, 0.068 mmol), triethylamine (0.028 mL, 0.20 mmol), and CH2Cl2 (2 mL). 2-(Dimethylamino)acetyl chloride hydrochloride (12.9 mg, 0.0817 mmol) was added and stirred at room temperature for 10 minutes. The reaction was partitioned between CH2Cl2 and saturated aqueous sodium bicarbonate. The organic layer was dried with sodium sulfate, filtered and concentrated. The residue was purified on silica gel (15% MeOH in EtOAc with 0.3% ammonia) to afford the title compound (35.6 mg, 70.1% yield) after HCl salt formation. 1H NMR (d6-DMSO) δ 11.15 (bs, 1H), 9.60 (bs, 1H), 8.17 (d, 1H), 7.75 (m, 1H), 7.32 (m, 2H), 7.21 (t, 1H), 6.94 (d, 1H), 6.79 (m, 1H), 6.75 (s, 1H), 6.71 (m, 2H), 4.42 (d, 1H), 4.31 (qd, 2H), 3.69 (s, 3H), 3.19 (t, 1H), 2.93 (m, 1H), 2.82 (m, 6H), 2.04 (d, 2H), 1.64 (m, 1H), 1.52 (m, 1H). Mass spectrum (apci) m/z=674.3 (M+H-2HCl). The reaction was partitioned between CH2Cl2 and saturated aqueous sodium bicarbonate The organic layer was dried with sodium sulfate filtered concentrated The residue was purified on silica gel (15% MeOH in EtOAc with 0.3% ammonia)

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

Procedure: A stirred suspension of 2-amino-1-(3-methoxycarbonyl-2-thioureido)-4-thiocyanatobenzene (5.6 g.) in dichloromethane (190 ml.) was treated in one portion at room temperature with N,N-dimethylglycyl chloride hydrochloride (3.82 g.). The stirring was continued for one hour and the mixture was allowed to stand overnight. The solid was filtered off and recrystallised from methanol to give 1-(3-methoxycarbonyl-2-thioureido)-2-(2-dimethylaminoacetamido)-4-thiocyanatobenzene hydrochloride (4.35 g.), m.p. 192°-193° C. (with decomposition). to stand overnight The solid was filtered off recrystallised from methanol

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

Procedure: A stirred suspension of 2-amino-1-(3-methoxycarbonyl-2-thioureido)-4-thiocyanatobenzene (5.6 g.) in dichloromethane (190 ml.) was treated in one portion at room temperature with N,N-dimethylglycyl chloride hydrochloride (3.82 g.). The stirring was continued for one hour and the mixture was allowed to stand overnight. The solid was filtered off and recrystallised from methanol to give 1-(3-methoxycarbonyl-2-thioureido)-2-(2-dimethylaminoacetamido)-4-thiocyanatobenzene hydrochloride (4.35 g.), m.p. 192°-193° C. (with decomposition). to stand overnight The solid was filtered off recrystallised from methanol

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

Procedure: A stirred solution of 2-amino-4-ethylthio-1-(3-methoxycarbonyl-2-thioureido)benzene (8.35 g.) in dry dimethylformamide (60 ml.) was treated at room temperature with N,N-dimethylglycyl chloride hydrochloride (5.53 g.). The mixture was heated to 40°-50° C. for 45 minutes, then cooled, and diluted with diethyl ether (900 ml.). An oil precipitated which crystallised on standing. This solid was filtered off, washed with diethyl ether (100 ml.), and suspended in a mixture of chloroform (100 ml.) and water (100 ml.). Sodium carbonate (3.5 g.) was added and the mixture was stirred for 20 minutes. The chloroform layer was separated and the aqueous layer was extracted twice with chloroform (2× 50 ml.). The organic layers were combined, dried over magnesium sulphate and evaporated to dryness. The residual solid was recrystallised from isopropanol to give 4-ethylthio-1-(3-methoxycarbonyl-2-thioureido)-2-(2-dimethylaminoacetamido)benzene (8.5 g.), m.p. 142° C. (with decomposition). The mixture was heated to 40°-50° C. for 45 minutes cooled An oil precipitated which crystallised This solid was filtered off washed with diethyl ether (100 ml.) suspended in a mixture of chloroform (100 ml.) and water (100 ml.) Sodium carbonate (3.5 g.) was added The chloroform layer was separated the aqueous layer was extracted twice with chloroform (2× 50 ml.) dried over magnesium sulphate evaporated to dryness The residual solid was recrystallised from isopropanol

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

Procedure: A stirred solution of 2-amino-4-ethylthio-1-(3-methoxycarbonyl-2-thioureido)benzene (8.35 g.) in dry dimethylformamide (60 ml.) was treated at room temperature with N,N-dimethylglycyl chloride hydrochloride (5.53 g.). The mixture was heated to 40°-50° C. for 45 minutes, then cooled, and diluted with diethyl ether (900 ml.). An oil precipitated which crystallised on standing. This solid was filtered off, washed with diethyl ether (100 ml.), and suspended in a mixture of chloroform (100 ml.) and water (100 ml.). Sodium carbonate (3.5 g.) was added and the mixture was stirred for 20 minutes. The chloroform layer was separated and the aqueous layer was extracted twice with chloroform (2× 50 ml.). The organic layers were combined, dried over magnesium sulphate and evaporated to dryness. The residual solid was recrystallised from isopropanol to give 4-ethylthio-1-(3-methoxycarbonyl-2-thioureido)-2-(2-dimethylaminoacetamido)benzene (8.5 g.), m.p. 142° C. (with decomposition). The mixture was heated to 40°-50° C. for 45 minutes cooled An oil precipitated which crystallised This solid was filtered off washed with diethyl ether (100 ml.) suspended in a mixture of chloroform (100 ml.) and water (100 ml.) Sodium carbonate (3.5 g.) was added The chloroform layer was separated the aqueous layer was extracted twice with chloroform (2× 50 ml.) dried over magnesium sulphate evaporated to dryness The residual solid was recrystallised from isopropanol

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

Procedure: To a solution of N,N-dimethylaminoacetyl chloride hydrochloride (137, 10.1 g, 64.2 mmol) in acetonitrile (300 ml.) was added powdered sodium bicarbonate (11.9 g, 141 mmol) followed by 4-aminobenzoic acid (138, 9.68 g, 70.6 mmol). The mixture was vigorously stirred over 16 h at r.t. and acetonitrile was decanted. The remaining gum was triturated with methanol and filtration afforded the title compound 139 (10.9 g, 76% yield). 1H NMR: (400 MHz, DMSO-d6) δ(ppm): 10.21 (s, 1H), 7.84 (d, J=8.4 Hz, 2H), 7.76 (d, J=8.6 Hz, 2H), 4.17 (bs, 2H), 2.27 (s, 6H). LRMS: (m/z): 223.3 (MH+). acetonitrile was decanted The remaining gum was triturated with methanol and filtration

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

Procedure: To a solution of N,N-dimethylaminoacetyl chloride hydrochloride (137, 10.1 g, 64.2 mmol) in acetonitrile (300 ml.) was added powdered sodium bicarbonate (11.9 g, 141 mmol) followed by 4-aminobenzoic acid (138, 9.68 g, 70.6 mmol). The mixture was vigorously stirred over 16 h at r.t. and acetonitrile was decanted. The remaining gum was triturated with methanol and filtration afforded the title compound 139 (10.9 g, 76% yield). 1H NMR: (400 MHz, DMSO-d6) δ(ppm): 10.21 (s, 1H), 7.84 (d, J=8.4 Hz, 2H), 7.76 (d, J=8.6 Hz, 2H), 4.17 (bs, 2H), 2.27 (s, 6H). LRMS: (m/z): 223.3 (MH+). acetonitrile was decanted The remaining gum was triturated with methanol and filtration

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

Procedure: To a mixture of Example 282B (24.43 g, 78 mmol), potassium carbonate (81 g, 587 mmol) and 2-(dimethylamino)acetyl chloride hydrochloride (43.3 g, 274 mmol) was added tetrahydrofuran (200 mL). The reaction mixture was stirred at room temperature for about 2 hours. The reaction mixture was filtered and the filtrate was washed with water (50 mL). The organic layer was separated and the aqueous layer was extracted with dichloromethane (3×100 mL). The combined organic extracts were dried over magnesium sulfate, filtered and concentrated under reduced pressure. The residue was purified by silica gel chromatography eluting with methanol in dichloromethane (5%) to afford the title compound. 1H NMR (400 MHz, DMSO-d6) δ ppm 10.72 (s, 1H), 8.19 (d, 1H, J=1.6), 8.03 (d, 1H, J=9.0), 7.76 (dd, 1H, J=2.0, 9.0), 3.22 (s, 2H), 2.32 (s, 6H), 1.63 (s, 9H). The reaction mixture was filtered the filtrate was washed with water (50 mL) The organic layer was separated the aqueous layer was extracted with dichloromethane (3×100 mL) The combined organic extracts were dried over magnesium sulfate filtered concentrated under reduced pressure The residue was purified by silica gel chromatography eluting with methanol in dichloromethane (5%)