3-bromo-1,1,1-trifluoropropan-2-ol

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

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

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

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: The title compound is prepared as an off-white lyophilizated powder following Scheme 1 and in analogy to Example 1 using 2-chloro-7-methoxy-quinoxaline, 3-bromo-1,1,1-trifluoro-2-propanol, piperidin-4-yl-carbamic acid tert-butyl ester and 3-oxo-3,4-dihydro-2H-benzo[1,4]thiazine-6-carboxylic acid as starting materials.

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

Procedure: The title compound is prepared as an off-white lyophilizated powder following Scheme 1 and in analogy to Example 1 using 2-chloro-7-methoxy-quinoxaline, 3-bromo-1,1,1-trifluoro-2-propanol, piperidin-4-yl-carbamic acid tert-butyl ester and 3-oxo-3,4-dihydro-2H-benzo[1,4]thiazine-6-carboxylic acid as starting materials.

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

Procedure: 260 mg of N-(4-tert-butyl-benzyl)-2,2,2-trifluoro-acetamide (1 mmol) were dissolved in 10 ml acetonitrile and treated with 169 mg of potassium tert-butylate (1.5 mmol). After 5 min stirring at rt, 0.125 ml of [rac]-3-bromo-1,1,1-trifluoro-propan-2-ol (1.2 mmol) were added and the reaction mixture stirred at 75° C. bath temperature for 22 h. After cooling down to rt, the reaction mixture was concentrated in vacuo, dissolved in EtOAc/water and the phases separated. The organic phase was then washed with brine, dried over magnesium sulfate, filtered and concentrated in vacuo. The residue was purified by column chromatography (90 g silica gel; EtOAc/heptane 1:4) to give 111 mg of N-(4-tert-butyl-benzyl)-2,2,2-trifluoro-N-(3,3,3-trifluoro-2-hydroxy-propyl)-acetamide as a white solid (30%). MS (ISP) 301.2 (M+H)+. the reaction mixture stirred at 75° C. bath temperature for 22 h After cooling down to rt the reaction mixture was concentrated in vacuo dissolved in EtOAc/water the phases separated The organic phase was then washed with brine dried over magnesium sulfate filtered concentrated in vacuo The residue was purified by column chromatography (90 g silica gel; EtOAc/heptane 1:4)

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

Procedure: 260 mg of N-(4-tert-butyl-benzyl)-2,2,2-trifluoro-acetamide (1 mmol) were dissolved in 10 ml acetonitrile and treated with 169 mg of potassium tert-butylate (1.5 mmol). After 5 min stirring at rt, 0.125 ml of [rac]-3-bromo-1,1,1-trifluoro-propan-2-ol (1.2 mmol) were added and the reaction mixture stirred at 75° C. bath temperature for 22 h. After cooling down to rt, the reaction mixture was concentrated in vacuo, dissolved in EtOAc/water and the phases separated. The organic phase was then washed with brine, dried over magnesium sulfate, filtered and concentrated in vacuo. The residue was purified by column chromatography (90 g silica gel; EtOAc/heptane 1:4) to give 111 mg of N-(4-tert-butyl-benzyl)-2,2,2-trifluoro-N-(3,3,3-trifluoro-2-hydroxy-propyl)-acetamide as a white solid (30%). MS (ISP) 301.2 (M+H)+. the reaction mixture stirred at 75° C. bath temperature for 22 h After cooling down to rt the reaction mixture was concentrated in vacuo dissolved in EtOAc/water the phases separated The organic phase was then washed with brine dried over magnesium sulfate filtered concentrated in vacuo The residue was purified by column chromatography (90 g silica gel; EtOAc/heptane 1:4)

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

Procedure: The title compound was prepared by reacting 3-bromo-1,1,1-trifluoropropan-2-ol and butyl 6-[N-(5-bromo-2-hydroxybenzyl)-N-ethylamino]pyridazine-3-carboxylate using a similar method to that of reference example 4.

Conditions: temp:75.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 50 mg (0.10 mmol) of the compound from Example 95A together with 50 mg (0.16 mmol) of cesium carbonate were dissolved in 0.5 ml of DMF, and 30 mg (0.16 mmol) of 3-bromo-1,1,1-trifluoropropan-2-ol were added. The mixture was then stirred at 75° C. for 8 h. For work-up, the reaction mixture was diluted with 0.5 ml of acetonitrile and directly purified chromatographically [Method 19]. This gave 15 mg (22% of theory) of the target compound. directly purified chromatographically [Method 19]

Conditions: temp:75.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: An amount of 50 mg (0.108 mmol) of N-tert-butyl-4-{[3-(4-chlorophenyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl]sulphonyl}-3-methoxybenzenecarboxamide from Example 14 and 53 mg (0.161 mmol) of caesium carbonate were suspended in 1 ml of dimethylformamide and admixed with 26 μl (0.161 mmol) of 3-bromo-1,1,1-trifluoro-2-propanol. The mixture was stirred at 75° C. for 8 hours. The suspension was diluted with saturated aqueous ammonium chloride solution. It was extracted twice with ethyl acetate. The combined organic phases were dried over sodium sulphate and freed from the solvent on a rotary evaporator. The crude product was purified by preparative HPLC [Method 5]. This gave 22 mg (36% of theory) of the target compound. It was extracted twice with ethyl acetate The combined organic phases were dried over sodium sulphate freed from the solvent on a rotary evaporator The crude product was purified by preparative HPLC [Method 5]