N-(2-aminoethyl)-2-(4-methoxyphenyl)acetamide

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

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

Conditions: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Dissolve 7-chloro-2,5-dimethyl-3-(2,4,6-trimethylphenyl)-pyrazolo[1,5-a]pyrimidine (0.26 g, 8.69×10−4 mol) in 2 mL N-methylpyrrolidine, and add N-(2-aminoethyl)-2-(4-methoxyphenyl)acetamide (0.75 g, 3.6 mmol). Heat to 80° C. overnight under N2. Partition between EtOAc (50 mL) and H2O (50 mL), then separate layers and wash EtOAC layer successively with 0.1 N NaOH (25 mL), H2O (25 mL), and brine. Pool aqueous layers and extract with EtOAc (25 mL). Pool EtOAc layers, dry over Na2SO4, filter and concentrate to yellow oil. Chromatograph on silica gel eluting with EtOAc and evaporate to obtain 0.30 g of N-(3-(2,4,6-trimethylphenyl)-2,5-dirnethyl-pyrazolo[1,5-a]pyrimidin-7yl)-2-(4-methoxyphenyl)acetamide as a clear pale yellow oil. LCMS=472.3 (MH+); 470.2 (M−). 1H-NMR (CDCl3): 7.10 (d, 2H, J=10.2 Hz); 6.39 (s, 2H); 6.81 (d, 2H, J=10.2 Hz); 6.46 (t, 1H, J=6.0 Hz); 6.16 (t, 1H, J=6.0 Hz); 5.79 (s, 1H); 3.76 (s, 3H); 3.45-3.50 (m, 6H); 2.38 (s, 3H); 2.30 (s, 3H); 2.20 (s, 3H); 2.02 (s, 6H). Partition between EtOAc (50 mL) and H2O (50 mL) separate layers and wash EtOAC layer successively with 0.1 N NaOH (25 mL), H2O (25 mL), and brine Pool aqueous layers and extract with EtOAc (25 mL) Pool EtOAc layers, dry over Na2SO4 filter concentrate to yellow oil Chromatograph on silica gel eluting with EtOAc and evaporate

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

Procedure: Heat a solution of 4-chloro-7-(4-methoxy-2,6-dimethyl-phenyl)-2,5-dimethyl-5H-pyrrolo[3,2-d]pyrimidine (120 mg, 0.38 mmol) and N-(2-amino-ethyl)-2-(4-methoxy-phenyl)-acetamide (125 mg) in NMP (2 mL) for 14 h at 130° C. Pour into water (5 mL) and extract with EtOAc (2×10 mL). Dry the combined organic extracts over Na2SO4, filter, and concentrate under reduced pressure to obtain the title compound which is used without further purification. extract with EtOAc (2×10 mL) Dry the combined organic extracts over Na2SO4 filter concentrate under reduced pressure

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

Procedure: Heat a solution of 4-chloro-7-(4-methoxy-2,6-dimethyl-phenyl)-2,5-dimethyl-5H-pyrrolo[3,2-d]pyrimidine (120 mg, 0.38 mmol) and N-(2-amino-ethyl)-2-(4-methoxy-phenyl)-acetamide (125 mg) in NMP (2 mL) for 14 h at 130° C. Pour into water (5 mL) and extract with EtOAc (2×10 mL). Dry the combined organic extracts over Na2SO4, filter, and concentrate under reduced pressure to obtain the title compound which is used without further purification. extract with EtOAc (2×10 mL) Dry the combined organic extracts over Na2SO4 filter concentrate under reduced pressure

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

Procedure: Heat a solution of 4-chloro-7-(4-methoxy-2,6-dimethyl-phenyl)-2,5-dimethyl-5H-pyrrolo[3,2-d]pyrimidine (120 mg, 0.38 mmol) and N-(2-amino-ethyl)-2-(4-methoxyphenyl)-acetamide (125 mg) in NMP (2 mL) for 14 h at 130° C. Pour into water (5 mL) and extract with EtOAc (2×10 mL). Dry the combined organic extracts over Na2SO4, filter, and concentrate under reduced pressure to obtain the title compound which is used without further purification. extract with EtOAc (2×10 mL) Dry the combined organic extracts over Na2SO4 filter concentrate under reduced pressure

Conditions: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Dissolve 7-chloro-2,5-dimethyl-3-(2,4,6-trimethylphenyl)-pyrazolo[1,5-a]pyrimidine (0.26 g, 8.69×10−4 mol) in 2 mL N-methylpyrrolidine, and add N-(2-aminoethyl)-2-(4-methoxyphenyl)acetamide (0.75 g, 3.6 mmol). Heat to 80° C. overnight under N2. Partition between EtOAc (50 mL) and H2O (50 mL), then separate layers and wash EtOAC layer successively with 0.1 N NaOH (25 mL), H2O (25 mL), and brine. Pool aqueous layers and extract with EtOAc (25 mL). Pool EtOAc layers, dry over Na2SO4, filter and concentrate to yellow oil. Chromatograph on silica gel eluting with EtOAc and evaporate to obtain 0.30 g of N-(3-(2,4,6-trimethylphenyl)-2,5-dirnethyl-pyrazolo[1,5-a]pyrimidin-7yl)-2-(4-methoxyphenyl)acetamide as a clear pale yellow oil. LCMS=472.3 (MH+); 470.2 (M−). 1H-NMR (CDCl3): 7.10 (d, 2H, J=10.2 Hz); 6.39 (s, 2H); 6.81 (d, 2H, J=10.2 Hz); 6.46 (t, 1H, J=6.0 Hz); 6.16 (t, 1H, J=6.0 Hz); 5.79 (s, 1H); 3.76 (s, 3H); 3.45-3.50 (m, 6H); 2.38 (s, 3H); 2.30 (s, 3H); 2.20 (s, 3H); 2.02 (s, 6H). Partition between EtOAc (50 mL) and H2O (50 mL) separate layers and wash EtOAC layer successively with 0.1 N NaOH (25 mL), H2O (25 mL), and brine Pool aqueous layers and extract with EtOAc (25 mL) Pool EtOAc layers, dry over Na2SO4 filter concentrate to yellow oil Chromatograph on silica gel eluting with EtOAc and evaporate