3-chloropropane-1-sulfonamide

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

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

Conditions: temp:40.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 3-chloropropane-1-sulfonamide (1.8 eq), DMAP (2.9 eq) and EDC (1.8 eq), were added to a solution of (7R)-7-[{2-[(tert-butoxycarbonyl)amino]ethyl}(methyl)amino]-14-cyclohexyl-7,8-dihydro-6H-indolo[1,2-e][1,5]benzoxazocine-11-carboxylic acid (prepared as described in Example 1, Step 7) (0.025 M) in DCM. The reaction was stirred under N2 at 40° C. for 2 h, before being allowed to cool. Volatiles were removed in vacuo to leave the crude product as a yellow gum which could be taken on without further purification. (ES+) m/z 687 (M+H)+; 689 (M+H)+ to cool Volatiles were removed in vacuo

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

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

Procedure: A solution of Example 11A (0.150 g, 0.405 mmol) in dry dimethyl sulfoxide (1.3 mL) under a nitrogen atmosphere was treated with potassium carbonate (0.090 g, 0.648 mmol), and the bright yellow mixture was stirred at room temperature for 30 minutes. Then 3-chloropropane-1-sulfonamide (0.096 g, 0.607 mmol) and sodium iodide (0.091 g, 0.607 mmol) were added, and the resultant mixture was heated at 50° C. for 22 hours. Additional potassium carbonate (0.090 g, 0.648 mmol), 3-chloropropane-1-sulfonamide (0.096 g, 0.607 mmol) and sodium iodide (0.091 g, 0.607 mmol) were added and stirring was continued at 50° C. for 23 hours. The reaction was incomplete by LCMS, so additional potassium carbonate (0.090 g, 0.648 mmol), 3-chloropropane-1-sulfonamide (0.096 g, 0.607 mmol) and sodium iodide (0.091 g, 0.607 mmol) were added followed by continued stirring at 50° C. for 22 hours. The reaction mixture was cooled to room temperature, diluted with ethyl acetate (50 mL), and washed with water (3×25 mL) and brine (10 mL). The organic phase was dried over anhydrous MgSO4, filtered, and concentrated in vacuo. Purification by silica gel flash chromatography (10 g) eluting with 3% methanol/dichloromethane followed by trituration with diethyl ether (3×5 mL) afforded the title compound as white solid (0.128 g, 64%). MS (ESI+) m/z 509 (M+NH4)+, (ESI−) m/z 490 (M−H)−. stirring was continued at 50° C. for 23 hours were added by continued stirring at 50° C. for 22 hours The reaction mixture was cooled to room temperature washed with water (3×25 mL) and brine (10 mL) The organic phase was dried over anhydrous MgSO4 filtered concentrated in vacuo Purification by silica gel flash chromatography (10 g) eluting with 3% methanol/dichloromethane

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

Procedure: A solution of Example 11A (0.150 g, 0.405 mmol) in dry dimethyl sulfoxide (1.3 mL) under a nitrogen atmosphere was treated with potassium carbonate (0.090 g, 0.648 mmol), and the bright yellow mixture was stirred at room temperature for 30 minutes. Then 3-chloropropane-1-sulfonamide (0.096 g, 0.607 mmol) and sodium iodide (0.091 g, 0.607 mmol) were added, and the resultant mixture was heated at 50° C. for 22 hours. Additional potassium carbonate (0.090 g, 0.648 mmol), 3-chloropropane-1-sulfonamide (0.096 g, 0.607 mmol) and sodium iodide (0.091 g, 0.607 mmol) were added and stirring was continued at 50° C. for 23 hours. The reaction was incomplete by LCMS, so additional potassium carbonate (0.090 g, 0.648 mmol), 3-chloropropane-1-sulfonamide (0.096 g, 0.607 mmol) and sodium iodide (0.091 g, 0.607 mmol) were added followed by continued stirring at 50° C. for 22 hours. The reaction mixture was cooled to room temperature, diluted with ethyl acetate (50 mL), and washed with water (3×25 mL) and brine (10 mL). The organic phase was dried over anhydrous MgSO4, filtered, and concentrated in vacuo. Purification by silica gel flash chromatography (10 g) eluting with 3% methanol/dichloromethane followed by trituration with diethyl ether (3×5 mL) afforded the title compound as white solid (0.128 g, 64%). MS (ESI+) m/z 509 (M+NH4)+, (ESI−) m/z 490 (M−H)−. stirring was continued at 50° C. for 23 hours were added by continued stirring at 50° C. for 22 hours The reaction mixture was cooled to room temperature washed with water (3×25 mL) and brine (10 mL) The organic phase was dried over anhydrous MgSO4 filtered concentrated in vacuo Purification by silica gel flash chromatography (10 g) eluting with 3% methanol/dichloromethane

Conditions: temp:40.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 3-chloropropane-1-sulfonamide (1.8 eq), DMAP (2.9 eq) and EDAC.HCl (1.8 eq) were added to a solution of (7R)-7-[{2-[(tert-butoxycarbonyl)amino]ethyl}(methyl)amino]-14-cyclohexyl-7,8-dihydro-6H-indolo[1,2-e][1,5]benzoxazocine-11-carboxylic acid (prepared as described in Example 1, Step 7) (0.025 M) in DCM. The reaction was stirred under N2 at 40° C. for 2 h, before being allowed to cool. Volatiles were removed in vacuo to leave the crude product as a yellow gum which could be taken on without further purification. (ES+) m/z 687 (M+H)+; 689 (M+H)+ to cool Volatiles were removed in vacuo

Conditions: temp:70.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 1.57 g of 3-chloro-1-propanesulfonamide in 20 ml of methanol was added 20 ml of 2N-potassium hydrogensulfide, followed by heating at 70° C. for 50 minutes. Further, 1.48 g of 28% sodium methoxide-methanol solution and 1.32 g of 2,6-dichloroimidazo[1,2-b]pyridazine [Japanese Unexamined Patent Publication No. SHO 64(1989)-38092] were added to the reaction mixture, and refluxed at 100° C. for 3 hours. The mixture was concentrated under reduced pressure. Then, the residue to which was 20 ml of water was added was adjusted to pH 7.0 with 1N-hydrochloric acid. The precipitated crystals were collected by filtration and subjected to a silica gel column chromatography, eluting with chloroform and methanol (50:1). The corresponding combined fractions were concentrated, and the residue was recrystallized to obtain 1.1 g of the title compound. refluxed at 100° C. for 3 hours The mixture was concentrated under reduced pressure was added The precipitated crystals were collected by filtration eluting with chloroform and methanol (50:1) The corresponding combined fractions were concentrated the residue was recrystallized

Conditions: temp:70.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 1.57 g of 3-chloro-1-propanesulfonamide in 20 ml of methanol was added 20 ml of 2N-potassium hydrogensulfide, followed by heating at 70° C. for 50 minutes. Further, 1.48 g of 28% sodium methoxide-methanol solution and 1.32 g of 2,6-dichloroimidazo[1,2-b]pyridazine [Japanese Unexamined Patent Publication No. SHO 64(1989)-38092] were added to the reaction mixture, and refluxed at 100° C. for 3 hours. The mixture was concentrated under reduced pressure. Then, the residue to which was 20 ml of water was added was adjusted to pH 7.0 with 1N-hydrochloric acid. The precipitated crystals were collected by filtration and subjected to a silica gel column chromatography, eluting with chloroform and methanol (50:1). The corresponding combined fractions were concentrated, and the residue was recrystallized to obtain 1.1 g of the title compound. refluxed at 100° C. for 3 hours The mixture was concentrated under reduced pressure was added The precipitated crystals were collected by filtration eluting with chloroform and methanol (50:1) The corresponding combined fractions were concentrated the residue was recrystallized

Conditions: temp:70.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 1.57 g of 3-chloro-1-propanesulfonamide in 20 ml of methanol was added 20ml of 2N-potassium hydrogensulfide-ethanol solution, followed by heating at 70° C. for 50 minutes. Then, 1.48 g of 28% sodium methoxide-methanol solution and 1.32g of 3,6-dichloroimidazo[1,2-b]pyridazine were added to the reaction mixture and refluxed at 100° C. for 3 hours. The mixture was concentrated under reduced pressure, and to the residue was added 20 ml of water, which was adjusted to pH 7.0 with 1N-hydrochloric acid. The precipitated crystals were collected by filtration and recrystallized from methanol and ethyl ether to obtain 1.12 g of the title compound. refluxed at 100° C. for 3 hours The mixture was concentrated under reduced pressure to the residue was added 20 ml of water, which The precipitated crystals were collected by filtration recrystallized from methanol and ethyl ether

Conditions: temp:70.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 1.57 g of 3-chloro-1-propanesulfonamide in 20 ml of methanol was added 20ml of 2N-potassium hydrogensulfide-ethanol solution, followed by heating at 70° C. for 50 minutes. Then, 1.48 g of 28% sodium methoxide-methanol solution and 1.32g of 3,6-dichloroimidazo[1,2-b]pyridazine were added to the reaction mixture and refluxed at 100° C. for 3 hours. The mixture was concentrated under reduced pressure, and to the residue was added 20 ml of water, which was adjusted to pH 7.0 with 1N-hydrochloric acid. The precipitated crystals were collected by filtration and recrystallized from methanol and ethyl ether to obtain 1.12 g of the title compound. refluxed at 100° C. for 3 hours The mixture was concentrated under reduced pressure to the residue was added 20 ml of water, which The precipitated crystals were collected by filtration recrystallized from methanol and ethyl ether

Conditions: temp:40.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 3-chloropropane-1-sulfonamide (1.8 eq), DMAP (2.9 eq) and EDC (1.8 eq), were added to a solution of (7R)-7-[{2-[(tert-butoxycarbonyl)amino]ethyl}(methyl)amino]-14-cyclohexyl-7,8-dihydro-6H-indolo[1,2-e][1,5]benzoxazocine-11-carboxylic acid (prepared as described in Example 1, Step 7) (0.025 M) in DCM. The reaction was stirred under N2 at 40° C. for 2 h, before being allowed to cool. Volatiles were removed in vacuo to leave the crude product as a yellow gum which could be taken on without further purification. (ES+) m/z 687 (M+H)+; 689 (M+H)+ to cool Volatiles were removed in vacuo