3-ethylpentan-1-amine

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: Place 5-(4-formylphenoxy)thiophene-2-carboxamide (Example 10, Part C) (0.235 g, 0.948 mmol), 3-ethylpentylamine (Part B) (0.115 g, 0.996 mmol) and 3 Å molecular sieves in a vial. Add methanol (4.7 mL), cap and stir overnight. Add NaBH4 (0.0359 g, 0.948 mmol) and stir until the gasses stop evolving. Load the reaction mixture directly onto a 25 g ISCO® pre-load column. Dry the column in a vacuum oven at room temperature. Purify by eluting through a 40 g ISCO® column with 5% to 20% (2.0 M NH3 in methanol) in ethyl acetate over 45 minutes to give the title compound: TOF MS ES+ 347.2 (M+H)+, HRMS calcd for C19H27N2O2S 347.1793 (M+H)+, found 347.1799, time 0.38 min; HPLC [YMC-Pro pack C-18 (150×4.6 mm, S-5 microm), 0.05% TFA/acetonitrile in 0.05% TFA/water at 1.0 mL/min, 10-20% over 5 min, 20-95% over 18], tR=12.4 min, 100% purity. Dry the column in a vacuum oven at room temperature Purify by eluting through a 40 g ISCO® column with 5% to 20% (2.0 M NH3 in methanol) in ethyl acetate over 45 minutes

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

Procedure: Place 5-(4-formylphenoxy)thiophene-2-carboxamide (Example 10, Part C) (0.235 g, 0.948 mmol), 3-ethylpentylamine (Part B) (0.115 g, 0.996 mmol) and 3 Å molecular sieves in a vial. Add methanol (4.7 mL), cap and stir overnight. Add NaBH4 (0.0359 g, 0.948 mmol) and stir until the gasses stop evolving. Load the reaction mixture directly onto a 25 g ISCO® pre-load column. Dry the column in a vacuum oven at room temperature. Purify by eluting through a 40 g ISCO® column with 5% to 20% (2.0 M NH3 in methanol) in ethyl acetate over 45 minutes to give the title compound: TOF MS ES+ 347.2 (M+H)+, HRMS calcd for C19H27N2O2S 347.1793 (M+H)+, found 347.1799, time 0.38 min; HPLC [YMC-Pro pack C-18 (150×4.6 mm, S-5 microm), 0.05% TFA/acetonitrile in 0.05% TFA/water at 1.0 mL/min, 10-20% over 5 min, 20-95% over 18], tR=12.4 min, 100% purity. Dry the column in a vacuum oven at room temperature Purify by eluting through a 40 g ISCO® column with 5% to 20% (2.0 M NH3 in methanol) in ethyl acetate over 45 minutes

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

Procedure: Place 5-(4-formyl-2-methoxyphenoxy)pyrazine-2-carboxamide (Example 719 Part A) (0.700 g, 2.56 mmol), 3-ethylpentylamine (Example 733, Part B) (0.310 g, 2.69 mmol) and 3 Å molecular sieves in a vial. Add methanol (12.8 mL), cap and stir overnight. Add NaBH4 (0.0969 g, 2.56 mmol) and stir until the gasses stop evolving. Load the reaction mixture directly onto a 25 g ISCO® pre-load column. Dry the column in a vacuum oven at room temperature. Purify by eluting through a 40 g ISCO® column with 5% to 20% (2.0 M NH3 in methanol) in ethyl acetate over 45 minutes. Concentrate the fraction containing the product, then add EtOAc (100 mL). Wash the organic solution with 1.0 N NaOH (2× 25 mL), dry it over Na2SO4, filter and concentrate. Dissolve the product in ether:dichloromethane (5:1) (25 mL), add hexanes (20 mL), and then concentrate to about a quarter of the volume. Filter the precipitate to give the title compound (0.302 g, 31.7%): TOF MS ES+ 373.2 (M+H)+, HRMS calcd for C20H29N4O3 373.2240 (M+H)+, found 373.2247, time 0.39 min; HPLC [YMC-Pro pack C-18 (150×4.6 mm, S-5 microm), 0.05% TFA/acetonitrile in 0.05% TFA/water at 1.0 mL/min, 0-20% over 5 min, 20-95% over 18], tR=12.0 min, 100% purity. Dry the column in a vacuum oven at room temperature Purify by eluting through a 40 g ISCO® column with 5% to 20% (2.0 M NH3 in methanol) in ethyl acetate over 45 minutes Concentrate the fraction containing the product Wash the organic solution with 1.0 N NaOH (2× 25 mL) dry it over Na2SO4 filter concentrate Dissolve the product in ether:dichloromethane (5:1) (25 mL) add hexanes (20 mL) concentrate to about a quarter of the volume Filter the precipitate

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

Procedure: Place 5-(4-formyl-2-methoxyphenoxy)pyrazine-2-carboxamide (Example 719 Part A) (0.700 g, 2.56 mmol), 3-ethylpentylamine (Example 733, Part B) (0.310 g, 2.69 mmol) and 3 Å molecular sieves in a vial. Add methanol (12.8 mL), cap and stir overnight. Add NaBH4 (0.0969 g, 2.56 mmol) and stir until the gasses stop evolving. Load the reaction mixture directly onto a 25 g ISCO® pre-load column. Dry the column in a vacuum oven at room temperature. Purify by eluting through a 40 g ISCO® column with 5% to 20% (2.0 M NH3 in methanol) in ethyl acetate over 45 minutes. Concentrate the fraction containing the product, then add EtOAc (100 mL). Wash the organic solution with 1.0 N NaOH (2× 25 mL), dry it over Na2SO4, filter and concentrate. Dissolve the product in ether:dichloromethane (5:1) (25 mL), add hexanes (20 mL), and then concentrate to about a quarter of the volume. Filter the precipitate to give the title compound (0.302 g, 31.7%): TOF MS ES+ 373.2 (M+H)+, HRMS calcd for C20H29N4O3 373.2240 (M+H)+, found 373.2247, time 0.39 min; HPLC [YMC-Pro pack C-18 (150×4.6 mm, S-5 microm), 0.05% TFA/acetonitrile in 0.05% TFA/water at 1.0 mL/min, 0-20% over 5 min, 20-95% over 18], tR=12.0 min, 100% purity. Dry the column in a vacuum oven at room temperature Purify by eluting through a 40 g ISCO® column with 5% to 20% (2.0 M NH3 in methanol) in ethyl acetate over 45 minutes Concentrate the fraction containing the product Wash the organic solution with 1.0 N NaOH (2× 25 mL) dry it over Na2SO4 filter concentrate Dissolve the product in ether:dichloromethane (5:1) (25 mL) add hexanes (20 mL) concentrate to about a quarter of the volume Filter the precipitate

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

Procedure: Place 5-(2-fluoro-4-formylphenoxy)pyrazine-2-carboxamide (Example 737, Part E) (0.400 g, 1.53 mmol), 3-ethylpentylamine (0.194 g, 1.68 mmol) (Example 733, Part B) and 3 Å molecular sieves in a vial. Add methanol (7.7 mL), cap and stir overnight. Add NaBH4 (0.058 g, 1.53 mmol) and stir until the gasses stop evolving. Load the reaction mixture directly onto a 25 g ISCO® pre-load column. Dry the column in a vacuum oven at room temperature. Purify by eluting through a 40 g ISCO® column with 0% to 15% (2.0 M NH3 in methanol) in 80% (ethyl acetate in hexanes) to give the title compound (0.342 g, 62%): TOF MS ES+ 361.2 (M+H)+, HRMS calcd for C19H26N4O2F 361.2040 (M+H)+, found 361.2048, time 0.57 min; HPLC [YMC-Pro pack C-18 (150×4.6 mm, S-5 microm), 0.05% TFA/acetonitrile in 0.05% TFA/water at 1.0 mL/min, 10-20% over 5 min. 20-95% over 18], tR=12.0 min, 96.9% purity. Dry the column in a vacuum oven at room temperature Purify by eluting through a 40 g ISCO® column with 0% to 15% (2.0 M NH3 in methanol) in 80% (ethyl acetate in hexanes)

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

Procedure: Place 5-(2-fluoro-4-formylphenoxy)pyridine-2-carboxamide (Example 403, Part B) (0.650 g, 2.50 mmol), 3-ethylpentylamine (Example 733, Part B) (0.317 g, 2.75 mmol) and 3 Å molecular sieves in a vial. Add methanol (12 mL), cap and stir overnight. Add NaBH4 (slight excess) and stir until the gasses stop evolving. Load the reaction mixture directly onto a 25 g ISCO® pre-load column. Dry the column in a vacuum oven at room temperature. Purify by eluting through a 40 g ISCO® column with 0% to 10% (2.0 M NH3 in methanol) in ethyl acetate to give the title compound (0.516 g, 58%): TOF MS ES+ 360.2 (M+H)+, HRMS calcd for C20H27N3O2F 360.2087 (M+H)+, found 360.2086, time 0.53 min; HPLC [YMC-Pro pack C-18 (150×4.6 mm, S-5 microm), 0.05% TFA/acetonitrile in 0.05% TFA/water at 1.0 mL/min, 10-20% over 5 min, 20-95% over 18], tR=12.3 min, 100% purity. Dry the column in a vacuum oven at room temperature Purify by eluting through a 40 g ISCO® column with 0% to 10% (2.0 M NH3 in methanol) in ethyl acetate