2-methylpentanoyl chloride

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: Following the procedure described for Example 1, Step 1, the title compound was prepared from 2-methyvaleryl chloride and thioanisole.

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

Procedure: Following the procedure described for Example 1, Step 1, the title compound was prepared from 2-methyvaleryl chloride and thioanisole.

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Toluene (20 ml) and thionyl chloride (1 ml) were added to commercially available 2-methylpentanoic acid (80 mg), and the mixture was heated at 100° C. for one hr. The solvent was removed by distillation, and 2-methylpentanoyl isothiocyanate was prepared using the resultant 2-methylpentanoyl chloride as a starting compound according to the description of the literature. The resultant 2-methylpentanoyl isothiocyanate was dissolved in ethanol (1 ml) to prepare a solution. 3-Chloro-4-[(6,7-dimethoxy-4-quinolyl)oxy]aniline (50 mg), toluene (5 ml), and ethanol (1 ml) were added to the solution, and the mixture was stirred at room temperature for 16 hr. The reaction solution was concentrated, and the residue was purified by chromatography on silica gel using chloroform/acetone for development to give the title compound (69 mg, yield 94%). The solvent was removed by distillation, and 2-methylpentanoyl isothiocyanate was prepared to prepare a solution The reaction solution was concentrated the residue was purified by chromatography on silica gel

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Toluene (20 ml) and thionyl chloride (1 ml) were added to commercially available 2-methylpentanoic acid (80 mg), and the mixture was heated at 100° C. for one hr. The solvent was removed by distillation, and 2-methylpentanoyl isothiocyanate was prepared using the resultant 2-methylpentanoyl chloride as a starting compound according to the description of the literature. The resultant 2-methylpentanoyl isothiocyanate was dissolved in ethanol (1 ml) to prepare a solution. 3-Chloro-4-[(6,7-dimethoxy-4-quinolyl)oxy]aniline (50 mg), toluene (5 ml), and ethanol (1 ml) were added to the solution, and the mixture was stirred at room temperature for 16 hr. The reaction solution was concentrated, and the residue was purified by chromatography on silica gel using chloroform/acetone for development to give the title compound (69 mg, yield 94%). The solvent was removed by distillation, and 2-methylpentanoyl isothiocyanate was prepared to prepare a solution The reaction solution was concentrated the residue was purified by chromatography on silica gel

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

Procedure: To 36 ml of toluene were added 1.0 g (5.9/1000 mole) of 3-chloro-4-isopropylaniline and 0.7 g of pyridine, and 0.9 g (5.9/1000 mole) of 2-methylvaleryl chloride was added. The mixture was stirred at room temperature for 20 minutes. The crystals that precipitated were separated by filtration. Water (70 ml) was added to the filtrate, and the mixture was extracted with toluene. The toluene solution was washed with a saturated aqueous solution of sodium hydrogen carbonate, and dried over anhydrous sodium sulfate. The resulting dried solution was concentrated by an evaporator. Recrystallization of the resulting crude crystals from methanol gave 1.2 g of N-(3-chloro-4-isopropylphenyl)-2-methylvaleramide in a yield of 76.0 % based on 3-chloro-4-isopropylaniline. was added The crystals that precipitated were separated by filtration Water (70 ml) was added to the filtrate the mixture was extracted with toluene The toluene solution was washed with a saturated aqueous solution of sodium hydrogen carbonate dried over anhydrous sodium sulfate The resulting dried solution was concentrated by an evaporator Recrystallization of the resulting crude crystals from methanol

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

Procedure: Following the procedure described for Example 1, Step 1, the title compound was prepared from 2-methyvaleryl chloride and thioanisole.

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

Procedure: A solution of N-(2-(5-fluoropyridin-3-yl)-4-methylthiazol-5-yl)-N-methylpiperidine-3-carboxamide (250 mg, 0.75 mmol), DMAP (91 mg, 0.75 mmol), potassium carbonate (310 mg, 2.243 mmol), and 2-methylpentanoyl chloride (201 mg, 1.495 mmol) in DCE (10 mL) was heated at 80° C. for 6 h. The cooled contents were diluted with water:dichloromethane (1:1, 20 mL) and the organic layer was collected and concentrated. The residue was purified via reversed phase chromatography (0 to 100% acetonitrile/water) to furnish the title compound as a clear oil (207 mg, 64%): 1H NMR (400 MHz, CDCl3) δ 8.89 (s, 1H), 8.54 (d, J=2.2 Hz, 1H), 7.96 (dt, J=9.0, 2.2 Hz, 1H), 4.63-4.59 (m, 1H), 3.92-3.78 (m, 1H), 3.42 (s, 3H), 2.66-2.48 (m, 4H), 2.38 (s, 3H), 1.89-1.73 (m, 2H), 1.71-1.68 (m, 2H), 1.38-1.17 (m, 4H), 1.08-1.01 (m, 3H), 0.97-0.86 (m, 3H); ESIMS m/z 433 (M+1). the organic layer was collected concentrated The residue was purified

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

Procedure: The title compound was prepared using a modification of the method of Wasserman, H. H. et al [J. Org. Chem., 38, 1451-1455, (1973)]; to a solution of 2-methyl pentanoyl chloride (3.91 ml) and ethyl ethynylether (5 g, 40% solution in hexanes, 28.6 mmol) in Et2O (35 ml) at room temperature was added triethylamine (9.9 ml), with stirring. The reaction was warmed to 50° and stirred for 72 h prior to cooling and filtration. The filtrate was concentrated in vacuo and the residual oil chromatographed (SiO2; hexanes 80: EtOAc 20) to give the title compound as a colourless oil (3.71 g, 17.9 mmol, 77%). δH (CDCl3, 300K), 4.84 (1H, s), 4.24-3.98 (2H, m), 2.04 (3H, s), 1.56-1.43 (4H, m), 1.30-1.26 (3H, m), 0.91 (3H, t, J 7.3 Hz). m/z (ES+, 70V) 178.1 (MH+). The title compound was prepared The reaction was warmed to 50° stirred for 72 h to cooling filtration The filtrate was concentrated in vacuo the residual oil chromatographed (SiO2; hexanes 80: EtOAc 20)

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

Procedure: The title compound was prepared using a modification of the method of Wasserman, H. H. et al [J. Org. Chem, 38, 1451-1455, (1973)]; to a solution of 2-methyl pentanoyl chloride (3.91 ml) and ethyl ethynylether (5 g, 40% solution in hexanes, 28.6 mmol) in Et2O (35 ml) at room temperature was added triethylamine (9.9 ml), with stirring. The reaction was warmed to 50° and stirred for 72 h prior to cooling and filtration. The filtrate was concentrated in vacuo and the residual oil chromatographed (SiO2; hexanes 80: EtOAc 20) to give the title compound as a colourless oil (3.71 g, 17.9 mmol, 77%). δH (CDCl3, 300K), 4.84 (1H, s), 4.24-3.98 (2H, m), 2.04 (3H, s), 1.56-1.43 (4H, m), 1.30-1.26 (3H, m), 0.91 (3H, t, J 7.3 Hz). m/z (ES+, 70V) 178.1 (MH+). The title compound was prepared The reaction was warmed to 50° stirred for 72 h to cooling filtration The filtrate was concentrated in vacuo the residual oil chromatographed (SiO2; hexanes 80: EtOAc 20)