4-chlorobutylsulfonylbenzene

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: Potassium carbonate (0.87 g) and 4-phenylsulfonylbutyl chloride (0.40 g) were added to a solution (15 ml) of 4-amino-5-chloro-2-methoxy-N-(piperidin-4-ylmethyl)benzamide dihydrochloride (0.52 g) in dimethylformamide, and the mixture was stirred at 70°-80° C. for 7.5 hr. Water was added to the reaction mixture, and the mixture was extracted with chloroform. The organic layer was washed with brine and dried. The solvent was evaporated under reduced pressure, and the obtained residue was purified by silica gel column chromatography. The obtained oil was treated with hydrochloric acid-ethanol and the obtained crystals were recrystallized from ethyl acetate to give 0.10 g of 4-amino-5-chloro-2-methoxy-N-((1-(4-phenylsulfonylbutyl)piperidin-4-yl)methyl)benzamide hydrochloride. the mixture was extracted with chloroform The organic layer was washed with brine dried The solvent was evaporated under reduced pressure the obtained residue was purified by silica gel column chromatography The obtained oil was treated with hydrochloric acid-ethanol the obtained crystals were recrystallized from ethyl acetate

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

Procedure: 30% Aqueous hydrogen peroxide solution (27.6 ml) was dropwise added under ice-cooling to a solution of 4-phenylthiobutyl chloride (22.2 g) obtained in the same manner as in Preparation Example 99 in formic acid (150 ml), which was followed by stirring at room temperature for 1 hr. The reaction mixture was poured into ice water, neutralized with sodium hydroxide solution and extracted with chloroform. The organic layer was washed with brine, dried and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (chloroform) and further recrystallized from hexane to give 21 g of 4-phenylsulfonylbutyl chloride. extracted with chloroform The organic layer was washed with brine dried the solvent was evaporated under reduced pressure The obtained residue was purified by silica gel column chromatography (chloroform) further recrystallized from hexane

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

Procedure: A solution of 105.95 g (0.456 mole) [(4-chlorobutyl)sulfonyl]benzene was heated overnight at 75° C. on an autoclave in 200 ml of isopropylamine. The reaction mixture was stripped to dryness. The residue obtained was dissolved in chloroform and the chloroform layer was extracted with water. The chloroform layer was dried, filtered, and solvent removed to give a dark brown oil. The oil was dissolved in methanol and converted to the hydrochloride salt. This salt was recrystallized from methanol-diethyl ether and dried in vacuo overnight at 80° C. This gave white crystalline product, m.p. 155°-157.5° C. in 30% yield. The residue obtained the chloroform layer was extracted with water The chloroform layer was dried filtered solvent removed to give a dark brown oil This salt was recrystallized from methanol-diethyl ether dried in vacuo overnight at 80° C

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

Procedure: A solution of 105.95 g (0.456 mole) [(4-chlorobutyl)sulfonyl]benzene was heated overnight at 75° C. on an autoclave in 200 ml of isopropylamine. The reaction mixture was stripped to dryness. The residue obtained was dissolved in chloroform and the chloroform layer was extracted with water. The chloroform layer was dried, filtered, and solvent removed to give a dark brown oil. The oil was dissolved in methanol and converted to the hydrochloride salt. This salt was recrystallized from methanol-diethyl ether and dried in vacuo overnight at 80° C. This gave white crystalline product, m.p. 155°-157.5° C. in 30% yield. The residue obtained the chloroform layer was extracted with water The chloroform layer was dried filtered solvent removed to give a dark brown oil This salt was recrystallized from methanol-diethyl ether dried in vacuo overnight at 80° C

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

Procedure: Potassium carbonate (0.87 g) and 4-phenylsulfonylbutyl chloride (0.40 g) were added to a solution (15 ml) of 4-amino-5-chloro-2-methoxy-N-(piperidin-4-ylmethyl)benzamide dihydrochloride (0.52 g) in dimethylformamide, and the mixture was stirred at 70°-80° C. for 7.5 hr. Water was added to the reaction mixture, and the mixture was extracted with chloroform. The organic layer was washed with brine and dried. The solvent was evaporated under reduced pressure, and the obtained residue was purified by silica gel column chromatography. The obtained oil was treated with hydrochloric acid-ethanol and the obtained crystals were recrystallized from ethyl acetate to give 0.10 g of 4-amino-5-chloro-2-methoxy-N-((1-(4-phenylsulfonylbutyl)piperidin-4-yl)methyl)benzamide hydrochloride. the mixture was extracted with chloroform The organic layer was washed with brine dried The solvent was evaporated under reduced pressure the obtained residue was purified by silica gel column chromatography The obtained oil was treated with hydrochloric acid-ethanol the obtained crystals were recrystallized from ethyl acetate

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

Procedure: 30% Aqueous hydrogen peroxide solution (27.6 ml) was dropwise added under ice-cooling to a solution of 4-phenylthiobutyl chloride (22.2 g) obtained in the same manner as in Preparation Example 99 in formic acid (150 ml), which was followed by stirring at room temperature for 1 hr. The reaction mixture was poured into ice water, neutralized with sodium hydroxide solution and extracted with chloroform. The organic layer was washed with brine, dried and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (chloroform) and further recrystallized from hexane to give 21 g of 4-phenylsulfonylbutyl chloride. extracted with chloroform The organic layer was washed with brine dried the solvent was evaporated under reduced pressure The obtained residue was purified by silica gel column chromatography (chloroform) further recrystallized from hexane

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

Procedure: A solution of 105.95 g (0.456 mole) [(4-chlorobutyl)sulfonyl]benzene was heated overnight at 75° C. on an autoclave in 200 ml of isopropylamine. The reaction mixture was stripped to dryness. The residue obtained was dissolved in chloroform and the chloroform layer was extracted with water. The chloroform layer was dried, filtered, and solvent removed to give a dark brown oil. The oil was dissolved in methanol and converted to the hydrochloride salt. This salt was recrystallized from methanol-diethyl ether and dried in vacuo overnight at 80° C. This gave white crystalline product, m.p. 155°-157.5° C. in 30% yield. The residue obtained the chloroform layer was extracted with water The chloroform layer was dried filtered solvent removed to give a dark brown oil This salt was recrystallized from methanol-diethyl ether dried in vacuo overnight at 80° C

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 105.95 g (0.456 mole) [(4-chlorobutyl)sulfonyl]benzene was heated overnight at 75° C. on an autoclave in 200 ml of isopropylamine. The reaction mixture was stripped to dryness. The residue obtained was dissolved in chloroform and the chloroform layer was extracted with water. The chloroform layer was dried, filtered, and solvent removed to give a dark brown oil. The oil was dissolved in methanol and converted to the hydrochloride salt. This salt was recrystallized from methanol-diethyl ether and dried in vacuo overnight at 80° C. This gave white crystalline product, m.p. 155°-157.5° C. in 30% yield. The residue obtained the chloroform layer was extracted with water The chloroform layer was dried filtered solvent removed to give a dark brown oil This salt was recrystallized from methanol-diethyl ether dried in vacuo overnight at 80° C

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

Procedure: A solution of 105.95 g (0.456 mole) [(4-chlorobutyl)sulfonyl]benzene was heated overnight at 75° C. on an autoclave in 200 ml of isopropylamine. The reaction mixture was stripped to dryness. The residue obtained was dissolved in chloroform and the chloroform layer was extracted with water. The chloroform layer was dried, filtered, and solvent removed to give a dark brown oil. The oil was dissolved in methanol and converted to the hydrochloride salt. This salt was recrystallized from methanol-diethyl ether and dried in vacuo overnight at 80° C. This gave white crystalline product, m.p. 155°-157.5° C. in 30% yield. The residue obtained the chloroform layer was extracted with water The chloroform layer was dried filtered solvent removed to give a dark brown oil This salt was recrystallized from methanol-diethyl ether dried in vacuo overnight at 80° C