二氯二苯氧基甲烷

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a mixture of 4-(2,3-diaminobenzoyl)amino-3-methoxy-N-methyl-N-[4-methyl-2-[5-(4-methylpiperazin-1-yl)carbonylpent-1-yloxy]phenyl]benzamide (140 mg) and sodium carbonate (14 mg) in ethyl acetate (1.5 ml) was added dropwise a solution of 1,1-dichloro-1,1-diphenoxymethane (67 mg) in ethyl acetate (1 ml) in water bath and the mixture was stirred at same temperature for 5 hours. The reaction mixture was evaporated in vacuo and dissolved in chloroform. The organic layer was washed with water, dried over magnesium sulfate and evaporated in vacuo. The residue was purified by preparative thin-layer chromatography (chloroform:methanol=10:1) to give 3-methoxy-N-methyl-N-[4-methyl-2-[5-(4-methylpiperazin-1-yl)carbonylpent-1-yloxy]phenyl]-4-(2-phenoxy-1H-benzimidazol-4-yl)carbonylaminobenzamide (18 mg). The reaction mixture was evaporated in vacuo dissolved in chloroform The organic layer was washed with water dried over magnesium sulfate evaporated in vacuo The residue was purified by preparative thin-layer chromatography (chloroform:methanol=10:1)

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a solution of sulfamide (100.9 mg, 1.05 mmol) in anhydrous acetonitrile (3.3 mL) is slowly added dichlorodiphenoxymethane (269.1 mg, 1.00 mmol) at 0° C. The reaction mixture is stirred at room temperature overnight before removal of the solvent. The residue is purified by chromatography to provide diphenyl sulfamoylcarbonimidate (280.2 mg, 96% yield) as a white solid product; HPLC-MS calculated for C13H12N2O4S (M+H+) 293.1, found 293.1. at 0° C The residue is purified by chromatography

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Dichlorodiphenoxymethane (1 g, 3.72 mmol) and sulfamide (0.72 g, 7.44 mmol) were dissolved in MeCN (10 ml) and stirred at room temperature for 18 hours. The mixture was concentrated under vacuum and purified by flash chromatography (20-40% EtOAc/hexanes) to afford diphenyl sulfamoylcarbonimidate (0.69 g, 2.34 mmol, 63%) as a colorless oil. The mixture was concentrated under vacuum purified by flash chromatography (20-40% EtOAc/hexanes)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Dichlorodiphenoxymethane (2 g, 7.46 mmol) and methylsulfonamide (1.56 g, 16.41 mmol) were dissolved in EtOAc (15 ml) and heated to reflux for 12 hours. The mixture was allowed to cool and was concentrated under vacuum. Purification of the crude mixture by flash chromatography (20% EtOAc/hexanes) afforded diphenyl methylsulfonylcarbonimidate (0.75 g, 2.59 mmol, 35%). heated to reflux for 12 hours to cool was concentrated under vacuum Purification of the crude mixture by flash chromatography (20% EtOAc/hexanes)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a mixture of 4-(2,3-diaminobenzoyl)amino-3-methoxy-N-methyl-N-[4-methyl-2-[5-(4-methylpiperazin-1-yl)carbonylpent-1-yloxy]phenyl]benzamide (140 mg) and sodium carbonate (14 mg) in ethyl acetate (1.5 ml) was added dropwise a solution of 1,1-dichloro-1,1-diphenoxymethane (67 mg) in ethyl acetate (1 ml) in water bath and the mixture was stirred at same temperature for 5 hours. The reaction mixture was evaporated in vacuo and dissolved in chloroform. The organic layer was washed with water, dried over magnesium sulfate and evaporated in vacuo. The residue was purified by preparative thin-layer chromatography (chloroform:methanol=10:1) to give 3-methoxy-N-methyl-N-[4-methyl-2-[5-(4-methylpiperazin-1-yl)carbonylpent-1-yloxy]phenyl]-4-(2-phenoxy-1H-benzimidazol-4-yl)carbonylaminobenzamide (18 mg). The reaction mixture was evaporated in vacuo dissolved in chloroform The organic layer was washed with water dried over magnesium sulfate evaporated in vacuo The residue was purified by preparative thin-layer chromatography (chloroform:methanol=10:1)