2-(3-chloropropoxy)oxane

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: 5-Chloro-thiophene-2-carboxylic acid (2-{(1-isopropyl-piperidin-4-yl)-[3-(tetrahydro-pyran-2-yloxy)-propyl]-sulfamoyl}-ethyl)-amide was prepared by an analogous procedure as described in example 15 starting from 245 mg (1.5 equiv.) 2-(3-chloro-propoxy)-tetrahydro-pyran and 360 mg (0.91 mmol) 5-chloro-thiophene-2-carboxylic acid [2-(1-isopropyl-piperidin-4-ylsulfamoyl)-ethyl]-amide. Final purification by preparative RP-HPLC (CH3CN/H2O gradient+0.05% formic acid) gave pure 5-chloro-thiophene-2-carboxylic acid (2-{(1-isopropyl-piperidin-4-yl)-[3-(tetrahydro-pyran-2-yloxy)-propyl]-sulfamoyl}-ethyl)-amide as its formate. 5-Chloro-thiophene-2-carboxylic acid (2-{(1-isopropyl-piperidin-4-yl)-[3-(tetrahydro-pyran-2-yloxy)-propyl]-sulfamoyl}-ethyl)-amide was prepared by an analogous procedure Final purification by preparative RP-HPLC (CH3CN/H2O gradient+0.05% formic acid)

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

Procedure: 2-(3′-Chloropropoxy) tetrahydro-2H-pyran (Aldrich) (9 g, 0.05 mol) was added to a solution of sodium iodide (37.8 g, 0.25 mol) in acetone (250 mL) with stirring. The resultant slurry was refluxed for 48 hours. The mixture was cooled, evaporated to a solid mass and transferred to the top of a short column of neutral alumina. The column was washed with CH2Cl2 (1 L) and CH2Cl2 was removed using a rotary evaporator. The product was obtained as yellow liquid (12.6 g, 93%). 1H NMR δ: 1.62-1.86 (m, 6 H, ring CH2), 2.07 (m, 2 H, CH2—CH2—I), 3.27 (m, 2 H, CH2—I), 3.38-3.54 (m, 2 H, CH2—O), 3.74-3.89 (m, 2 H ring O—CH2), 4.58 (t, 1 H, J=3.2 Hz, ring CH); λmax/nm (εmax/dm3 mol−1 cm−1) 267 (1500); HRMS (EI+) calc. for C8H15IO2: 269.0049. found 269.0039. The resultant slurry was refluxed for 48 hours The mixture was cooled evaporated to a solid mass The column was washed with CH2Cl2 (1 L) and CH2Cl2 was removed a rotary evaporator

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

Procedure: A mixture of 5-Hydroxy-6-methoxy-indan-1-one (Intermediate H, 2.98 g, 0.017 mole), 2-(3-chloro-propoxy)-tetrahydro-pyran (Compound 18a) (6.0 g, 0.034 mole), and potassium carbonate (10.0 g, 0.0725 mole) were stirred in 50 mL of DMF at 80° C. overnight under Argon. The reaction mixture was then diluted with 200 mL of ethyl acetate and washed 3 times with water. After drying over sodium sulfate, the solvent was removed in vacuo. The crude material solidified on standing to yield the title compound, 6-Methoxy-5-[3-(tetrahydro-pyran-2-yloxy)-propoxy]-indan-1-one. MS m/z 309 (M+H)+. washed 3 times with water After drying over sodium sulfate the solvent was removed in vacuo

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

Procedure: 5-Chloro-thiophene-2-carboxylic acid (2-{(1-isopropyl-piperidin-4-yl)-[3-(tetrahydro-pyran-2-yloxy)-propyl]-sulfamoyl}-ethyl)-amide was prepared by an analogous procedure as described in example 15 starting from 245 mg (1.5 equiv.) 2-(3-chloro-propoxy)-tetrahydro-pyran and 360 mg (0.91 mmol) 5-chloro-thiophene-2-carboxylic acid [2-(1-isopropyl-piperidin-4-ylsulfamoyl)-ethyl]-amide. Final purification by preparative RP-HPLC (CH3CN/H2O gradient+0.05% formic acid) gave pure 5-chloro-thiophene-2-carboxylic acid (2-{(1-isopropyl-piperidin-4-yl)-[3-(tetrahydro-pyran-2-yloxy)-propyl]-sulfamoyl}-ethyl)-amide as its formate. 5-Chloro-thiophene-2-carboxylic acid (2-{(1-isopropyl-piperidin-4-yl)-[3-(tetrahydro-pyran-2-yloxy)-propyl]-sulfamoyl}-ethyl)-amide was prepared by an analogous procedure Final purification by preparative RP-HPLC (CH3CN/H2O gradient+0.05% formic acid)

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

Procedure: 5-Chloro-thiophene-2-carboxylic acid (2-{(1-isopropyl-piperidin-4-yl)-[3-(tetrahydro-pyran-2-yloxy)-propyl]-sulfamoyl}-ethyl)-amide was prepared by an analogous procedure as described in example 15 starting from 245 mg (1.5 equiv.) 2-(3-chloro-propoxy)-tetrahydro-pyran and 360 mg (0.91 mmol) 5-chloro-thiophene-2-carboxylic acid [2-(1-isopropyl-piperidin-4-ylsulfamoyl)-ethyl]-amide. Final purification by preparative RP-HPLC (CH3CN/H2O gradient+0.05% formic acid) gave pure 5-chloro-thiophene-2-carboxylic acid (2-{(1-isopropyl-piperidin-4-yl)-[3-(tetrahydro-pyran-2-yloxy)-propyl]-sulfamoyl}-ethyl)-amide as its formate. 5-Chloro-thiophene-2-carboxylic acid (2-{(1-isopropyl-piperidin-4-yl)-[3-(tetrahydro-pyran-2-yloxy)-propyl]-sulfamoyl}-ethyl)-amide was prepared by an analogous procedure Final purification by preparative RP-HPLC (CH3CN/H2O gradient+0.05% formic acid)

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

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

Conditions: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 5,6-dihydroxy-indan-1-one (Intermediate O) (1.80 g, 0.01098 mole), potassium carbonate (3.80 g, 0.02744 mol), 2-(3-chloro-propoxy)-tetrahydro-pyran (Compound 18a) (1.37 g, 0.00769 mol) and potassium iodide (1.28 g, 0.00769 mol) in DMF (20 mL) was stirred at 60° C. for 4 hours. To this mixture was then added ethyl bromide (1.64 mL, 0.02196 mol) and continued to heat for further 4 h. The reaction mixture was then diluted with ethyl acetate, washed with water and dried over MgSO4. The solvent was removed in vacuo and the title compound was purified by silica gel column chromatography using 3:1 Hexanes:ethyl acetate as the eluent. MS m/z 334.2 (M+H)+; to heat for further 4 h washed with water dried over MgSO4 The solvent was removed in vacuo the title compound was purified by silica gel column chromatography

Conditions: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of compound 11a (950 mg, 3.20 mmol) in anhydrous DMF (10 mL) under argon at room temperature was carefully added sodium hydride (60% suspension in oil) (140 mg, 3.50 mmol). The solution was stirred for 30 min and 2-(3-chloropropoxy)-tetrahydro-2H-pyran (656 mg, 3.66 mmol) was dropwise added. Finally, sodium iodide (480 mg, 3.20 mmol) was added and the solution was heated at 50° C. for 36 hrs. The resulting solution was diluted with diethyl ether (75 mL), washed successively with a 10% potassium phosphate and brine solution, and finally dried with magnesium sulphate. The crude compound was purified by flash chromatography using EtOAc/Hexane (3:7) as an eluant to give pure compound 12a (1.03 g, 73%). 1H NMR (300 MHz, Acetone-d6) δ: 1.51 (m, 4H), 1.57 (s, 6H), 1.6-1.9 (m, 2H), 2.04 (m, 2H), 3.50 (m, 4H), 3.80 (m, 2H), 4.59 (t, 1H, J=3.42 Hz), 8.18 (m, 2H), 8.27 (s, 1H). at room temperature washed successively with a 10% potassium phosphate and brine solution finally dried with magnesium sulphate The crude compound was purified by flash chromatography

Conditions: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of compound 11a (950 mg, 3.20 mmol) in anhydrous DMF (10 mL) under argon at room temperature was carefully added sodium hydride (60% suspension in oil) (140 mg, 3.50 mmol). The solution was stirred for 30 min and 2-(3-chloropropoxy)-tetrahydro-2H-pyran (656 mg, 3.66 mmol) was dropwise added. Finally, sodium iodide (480 mg, 3.20 mmol) was added and the solution was heated at 50° C. for 36 hrs. The resulting solution was diluted with diethyl ether (75 mL), washed successively with a 10% potassium phosphate and brine solution, and finally dried with magnesium sulphate. The crude compound was purified by flash chromatography using EtOAc/Hexane (3:7) as an eluant to give pure compound 12a (1.03 g, 73%). 1H NMR (300 MHz, Acetone-d6) δ: 1.51 (m, 4H), 1.57 (s, 6H), 1.6-1.9 (m, 2H), 2.04 (m, 2H), 3.50 (m, 4H), 3.80 (m, 2H), 4.59 (t, 1H, J=3.42 Hz), 8.18 (m, 2H), 8.27 (s, 1H). at room temperature washed successively with a 10% potassium phosphate and brine solution finally dried with magnesium sulphate The crude compound was purified by flash chromatography