二已胺

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

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: A solution of compound Compound 2 (5.0 g, 20.2 mmol) from step (b) of Example 1 dissolved in chloroform (30 ml) was added drop wise to a solution of dihexylamine (4.5 g, 24.2 mmol) in chloroform (20 ml). The combined mixture was stirred at room temperature for 2 hours. The reaction mixture was then washed with water (2×, 50 ml) and brine (1×, 50 ml). The organic layer was then dried with sodium sulfate and evaporated. The residue thus obtained was suspended in ca. 5 ml hot ethyl acetate and this solution was then slowly added to 40 ml hexane. The white solid that precipitated was filtered and the filtrate evaporated to dryness to provide 7.76 g (97%) of Compound 20 as a syrupy liquid, Rf=0.43 (30% ethyl acetate in hexane). The structure of this compound is given below: The reaction mixture was then washed with water (2×, 50 ml) and brine (1×, 50 ml) The organic layer was then dried with sodium sulfate evaporated The residue thus obtained The white solid that precipitated was filtered the filtrate evaporated to dryness

反应条件: temp:0.00; pressure:0.00; stir:

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: Dihexylamine (90 mg, 0.48 mmol) was added to a solution of 3,4-diethyloxy-1,1-dioxo-1,2,5-thiadiazole (100 mg, 0.48 mmol) in ethanol (5 mL) and the reaction stirred overnight at room temperature. The solvent was removed under reduced pressure and the residue absorbed onto silica gel, and purified by flash column chromatography (silica, hexane:EtOAc 3:1) to yield the title intermediate (120 mg, 72%). The solvent was removed under reduced pressure the residue absorbed onto silica gel purified by flash column chromatography (silica, hexane:EtOAc 3:1)

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

实验步骤: Dihexylamine (90 mg, 0.48 mmol) was added to a solution of 3,4-diethyloxy-1,1-dioxo-1,2,5-thiadiazole (100 mg, 0.48 mmol) in ethanol (5 mL) and the reaction stirred overnight at room temperature. The solvent was removed under reduced pressure and the residue absorbed onto silica gel, and purified by flash column chromatography (silica, hexane:EtOAc 3:1) to yield the title intermediate (120 mg, 72%). The solvent was removed under reduced pressure the residue absorbed onto silica gel purified by flash column chromatography (silica, hexane:EtOAc 3:1)

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

实验步骤: Dihexylamine (90 mg, 0.48 mmol) was added to a solution of 3,4-diethyloxy-1,1-dioxo-1,2,5-thiadiazole (100 mg, 0.48 mmol) in ethanol (5 mL) and the reaction stirred overnight at room temperature. The solvent was removed under reduced pressure and the residue absorbed onto silica gel, and purified by flash column chromatography (silica, hexane:EtOAc 3:1) to yield 4-(N,N-di-n-hexylamino)-3-ethoxy-1,1-dioxo-1,2,5-thiadiazole (120 mg, 72%). MS (EI, m/e 345). The solvent was removed under reduced pressure the residue absorbed onto silica gel purified by flash column chromatography (silica, hexane:EtOAc 3:1)

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

实验步骤: Dihexylamine (6.3 mL, 27 mmol) was added to a mixture of cyanuric chloride (5 0 g, 27 mmol) and sodium carbonate (2.9 g, 27 mmol) in acetonitrile (50 mL). The reaction mixture was heated to reflux for 16 h and then allowed to col to ambient temperature. The mixture was diluted with ethyl acetate and water. The phases were separated and the organic phase was washed with brine, dried over magnesium sulfate, and concentrated under reduced pressure. The crude material was purified by flash column chromatography through silica get (elution with 3:1 hexanes:chloroform) to afford 2,4-dichloro-6-dihexylamino-1,3,5-triazine. The reaction mixture was heated to reflux for 16 h to col to ambient temperature The phases were separated the organic phase was washed with brine dried over magnesium sulfate concentrated under reduced pressure The crude material was purified by flash column chromatography through silica get (elution with 3:1 hexanes:chloroform)

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

实验步骤: Dihexylamine (90 mg, 0.48 mmol) was added to a solution of 3,4-diethyloxy-1,1-dioxo-1,2,5-thiadiazole (100 mg, 0.48 mmol) in ethanol (5 mL) and the reaction stirred overnight at room temperature. The solvent was removed under reduced pressure and the residue absorbed onto silica gel, and purified by flash column chromatography (silica, hexane:EtOAc 3:1) to yield 4-(N,N-di-n-hexylamino)-3-ethoxy-1,1-dioxo-1,2,5-thiadiazole (120 mg, 72%). MS (EI, m/e 345). The solvent was removed under reduced pressure the residue absorbed onto silica gel purified by flash column chromatography (silica, hexane:EtOAc 3:1)