2-(1,4-diazepan-1-yl)ethanol

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:

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: 350 mg (1.2 mmol) of 8-Chloro-1-cyclopropyl-6,7-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (for preparation see: DE 3420743) are dissolved according to DE 3635218 in 3 ml of dry pyridine and heated at reflux with 202 mg (1.4 mmol) of hexahydro-1H-1,4-diazepine-1-ethanol for 4 hours. After standing overnight the mixture is concentrated, taken up with water and brought to pH 6 using dilute hydrochloric acid. The solution is saturated with sodium chloride at boiling heat. After it has cooled to room temperature, it is extracted a number of times with dichloromethane. The organic extracts are filtered over a little silica gel and concentrated. 288 mg of the target compound are obtained this way. The compound is used as a crude product in the subsequent reaction stages. heated the mixture is concentrated at boiling heat it is extracted a number of times with dichloromethane The organic extracts are filtered over a little silica gel concentrated

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

Procedure: 350 mg (1.2 mmol) of 8-Chloro-1-cyclopropyl-6,7-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (for preparation see: DE 3420743) are dissolved according to DE 3635218 in 3 ml of dry pyridine and heated at reflux with 202 mg (1.4 mmol) of hexahydro-1H-1,4-diazepine-1-ethanol for 4 hours. After standing overnight the mixture is concentrated, taken up with water and brought to pH 6 using dilute hydrochloric acid. The solution is saturated with sodium chloride at boiling heat. After it has cooled to room temperature, it is extracted a number of times with dichloromethane. The organic extracts are filtered over a little silica gel and concentrated. 288 mg of the target compound are obtained this way. The compound is used as a crude product in the subsequent reaction stages. heated the mixture is concentrated at boiling heat it is extracted a number of times with dichloromethane The organic extracts are filtered over a little silica gel concentrated

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

Procedure: To a suspension of 0.060 g (0.18 mmol) of 5-(3-benzofuran-2-yl-phenyl)-1,4-dimethyl-1H-pyrazole-3-carboxylic acid in 2 ml of CH2Cl2 was added 0.031 g (0.22 mmol) of 2-(1,4-diazepan-1-yl)ethan-1-ol, diluted in 1.7 ml of CH2Cl2. This solution was treated at 0° C. with 0.048 g (0.23 mmol) of DCC. The reaction was allowed to warm up over night to RT, then partitioned between aqueous saturated NaHCO3/EtOAc (3×). The organic phases were washed with aqueous saturated NaHCO3, dried (Na2SO4) and evaporated. The residue was suspended in EtOAc and filtered to remove the DCC urea. Purification by flash chromatography (SiO2—NH2, n-heptane/EtOAc 1:4) gave 0.033 g (39%) of [5-(3-benzofuran-2-yl-phenyl)-1,4-dimethyl-1H-pyrazol-3-yl]-[4-(2-hydroxy-ethyl)-[1,4]diazepan-1-yl]-methanone as white oil. MS: 459.3 (MH+). partitioned between aqueous saturated NaHCO3/EtOAc (3×) The organic phases were washed with aqueous saturated NaHCO3 dried (Na2SO4) evaporated filtered to remove the DCC urea Purification by flash chromatography (SiO2—NH2, n-heptane/EtOAc 1:4)