3-苯甲氧基丙烷-1-ol

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:

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 soln. of 3-benzyloxy-1-propanol (4.08 g, 3.90 ml, 24.5 mmol) and tetra-n-butylammonium hydrogen sulfate (1.78 g, 5.25 mmol) in toluene (100 ml) was cooled in an ice-bath and 35% strength sodium hydroxide solution (49.0 g, 140 ml, 1.22 mol) was added. A soln. of 2,4,6-trichloro-N-chloromethyl-N-methylbenzenesulfonamide (7.10 g, 22 mmol) in MC (60 ml) was then slowly added dropwise. The mixture was then stirred at RT for 15-20 h. Thereafter, the phases were separated and the organic phase was washed neutral with water (6×50 ml) and saturated sodium chloride solution (2×40 ml), dried with Na2SO4 and concentrated i. vac. The crude product was purified by means of flash chromatography with cyclohexane/EtOAc (9:1). Thereafter, the phases were separated the organic phase was washed neutral with water (6×50 ml) and saturated sodium chloride solution (2×40 ml) dried with Na2SO4 concentrated i The crude product was purified by means of flash chromatography with cyclohexane/EtOAc (9:1)

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

实验步骤: The title compound, colorless oil, MS: m/e=403.5 (M+H+) was prepared in accordance with the general method of example 1 from diphenylacetyl isocyanate and 3-benzyloxy-propan-1-ol.

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:5.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 1,1′-(azodicarbonyl)dipiperidine (480 mg, 1.9 mmol) was added in portions to a mixture of 4-(4-chloro-2-fluoroanilino)-7-hydroxy-6-methoxyquinazoline (200 mg, 0.63 mmol), 3-benzyloxypropanol (150 μl, 0.95 mmol) and tributylphosphine (459 μl, 1.86 mmol) in methylene chloride (20 ml) at 5° C. The reaction was stirred for 1 hour at 5° C. and then for 18 hours at ambient temperature. The mixture was diluted with ether and stirred for 15 minutes. The insolubles were removed by filtration and the volatiles were removed from the filtrate by evaporation. The residue was partitioned between ethyl acetate and water, and the organic layer was separated, dried (MgSO4) and the solvent removed by evaporation. A 1M solution of ethereal hydrogen chloride was added to the residue, the resulting solution was reduced in volume by evaporation and the resulting precipitate was collected by filtration and dried to give 7-(3-benzyloxypropoxy)-4-(4-chloro-2-fluoroanilino)-6-methoxyquinazoline hydrochloride (90 mg, 31%). for 18 hours at ambient temperature stirred for 15 minutes The insolubles were removed by filtration the volatiles were removed from the filtrate by evaporation The residue was partitioned between ethyl acetate and water the organic layer was separated dried (MgSO4) the solvent removed by evaporation A 1M solution of ethereal hydrogen chloride was added to the residue the resulting solution was reduced in volume by evaporation the resulting precipitate was collected by filtration dried