2-(bromomethyl)-1,1-difluorocyclopropane

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: Prepared according to the general procedure described in Example 86, by reacting 4-methoxy-3-(1H-pyrazol-4-yl)-1-trityl-1H-pyrazolo[4,3-c]pyridine with 1-bromomethyl-2,2-difluorocyclopropane to give the title compound (29.4 mg, 55% over two steps). LC-MS (Method G): m/z=306.0 [M+H]+, 3.49 min. 1H-NMR (400 MHz, DMSO): δ 13.28 (s, 1H), 8.34 (s, 1H), 8.04 (s, 1H), 7.86 (d, J=5.8, 1H), 7.09 (d, J=5.9, 1H), 4.43-4.26 (m, 2H), 4.06 (s, 3H), 2.37-2.23 (m, 1H), 1.79-1.67 (m, 1H), 1.60-1.49 (m, 1H). Prepared

Conditions: temp:70.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The mixture of 5.00 g (28.7 mmol) of 2-bromo-5-hydroxypyridine, 6.14 g (35.9 mmol) of 1-bromomethyl-2,2-difluorocyclopropane and 9.93 g (71.8 mmol) of K2CO3 in 100 ml ACN is stirred at 70° C. for 14 h. The reaction mixture is diluted with EtOAc, washed with water and 1N aq. NaOH, dried over MgSO4, filtered and the solvent is removed in vacuo. washed with water and 1N aq. NaOH dried over MgSO4 filtered the solvent is removed in vacuo

Conditions: temp:65.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Powdered potassium hydroxide (423 mg, 7.54 mmol) and 2-(bromomethyl)-1,1-difluorocyclopropane (657 mg, 3.84 mmol) were sequentially added to a stirred solution of 3-mercaptopropanoic acid (400 mg, 3.77 mmol) in methanol (2 mL) at room temperature. The resulting white suspension was stirred at 65° C. for 3 hours and quenched with 1N aqueous hydrochloric acid and diluted with ethyl acetate. The organic phase was separated and the aqueous phase extracted with ethyl acetate (2×50 mL). The combined organic extracts were dried over magnesium sulfate, filtered and concentrated in vacuo to give the title molecule as a colorless oil (652 mg, 84%): IR (thin film) 3025, 2927, 2665, 2569, 1696 cm−1; 1H NMR (400 MHz, CDCl3) δ 2.85 (t, J=7.0 Hz, 2H), 2.82-2.56 (m, 4H), 1.88-1.72 (m, 1H), 1.53 (dddd, J=12.3, 11.2, 7.8, 4.5 Hz, 1H), 1.09 (dtd, J=13.1, 7.6, 3.7 Hz, 1H); ESIMS m/z 195.1 ([M−H]−). quenched with 1N aqueous hydrochloric acid diluted with ethyl acetate The organic phase was separated the aqueous phase extracted with ethyl acetate (2×50 mL) The combined organic extracts were dried over magnesium sulfate filtered concentrated in vacuo

Conditions: temp:65.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Powdered potassium hydroxide (423 mg, 7.54 mmol) and 2-(bromomethyl)-1,1-difluorocyclopropane (657 mg, 3.84 mmol) were sequentially added to a stirred solution of 3-mercaptopropanoic acid (400 mg, 3.77 mmol) in methanol (2 mL) at room temperature. The resulting white suspension was stirred at 65° C. for 3 hours and quenched with 1N aqueous hydrochloric acid and diluted with ethyl acetate. The organic phase was separated and the aqueous phase extracted with ethyl acetate (2×50 mL). The combined organic extracts were dried over magnesium sulfate, filtered and concentrated in vacuo to give the title molecule as a colorless oil (652 mg, 84%): IR (thin film) 3025, 2927, 2665, 2569, 1696 cm−1; 1H NMR (400 MHz, CDCl3) δ 2.85 (t, J=7.0 Hz, 2H), 2.82-2.56 (m, 4H), 1.88-1.72 (m, 1H), 1.53 (dddd, J=12.3, 11.2, 7.8, 4.5 Hz, 1H), 1.09 (dtd, J=13.1, 7.6, 3.7 Hz, 1H); ESIMS m/z 195.1 ([M−H]−). quenched with 1N aqueous hydrochloric acid diluted with ethyl acetate The organic phase was separated the aqueous phase extracted with ethyl acetate (2×50 mL) The combined organic extracts were dried over magnesium sulfate filtered concentrated in vacuo

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

Procedure: Following the procedure as describe in Preparation 16, making variations as required to replace ethyl 4-methyl-2-(5-oxo-1H-1,2,4-triazol-4(5H)-yl)thiazole-5-carboxylate with 1-(5-acetyl-4-methylthiazol-2-yl)imidazolidin-2-one to react with bromomethyl-2,2-difluorocyclopropane, the title compound was obtained as a yellow solid in 49% yield: mp 146-148° C.; 1H NMR (300 MHz, DMSO-d6) δ 4.00 (t, J=9.0 Hz, 2H), 3.65-3.48 (m, 2H), 3.20-3.13 (m, 2H), 2.51 (s, 3H), 2.41 (s, 3H), 2.05-2.18 (m, 1H), 1.68-1.56 (m, 1H), 1.38-1.27 (m, 1H); 13C NMR (75 MHz, DMSO-d6) δ 190.8, 160.1, 155.1, 154.9, 125.8, 114.8 (t), 42.4, 42.1, 41.1 (d), 30.4, 20.2 (t), 18.6, 14.9 (t); MS (ES+) m/z 316.9 (M+1). as describe in Preparation 16

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

Procedure: Following the procedure as describe in Preparation 16, making variations as required to replace ethyl 4-methyl-2-(5-oxo-1H-1,2,4-triazol-4(5H)-yl)thiazole-5-carboxylate with 1-(5-acetyl-4-methylthiazol-2-yl)imidazolidin-2-one to react with bromomethyl-2,2-difluorocyclopropane, the title compound was obtained as a yellow solid in 49% yield: mp 146-148° C.; 1H NMR (300 MHz, DMSO-d6) δ 4.00 (t, J=9.0 Hz, 2H), 3.65-3.48 (m, 2H), 3.20-3.13 (m, 2H), 2.51 (s, 3H), 2.41 (s, 3H), 2.05-2.18 (m, 1H), 1.68-1.56 (m, 1H), 1.38-1.27 (m, 1H); 13C NMR (75 MHz, DMSO-d6) δ 190.8, 160.1, 155.1, 154.9, 125.8, 114.8 (t), 42.4, 42.1, 41.1 (d), 30.4, 20.2 (t), 18.6, 14.9 (t); MS (ES+) m/z 316.9 (M+1). as describe in Preparation 16