1,2-dichloro-3-fluorobenzene

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: (S)-3-((R)-2-Ethyl-1-hydroxybutyl)pyrrolidine-1-carboxylic acid t-butyl ester (28 mg, 0.1 mmol) was dissolved in DMF (380 μL, 4.9 mmol). 60% Sodium hydride in oil (0.4:0.6, sodium hydride:mineral oil, 18.6 mg, 310 μmol) was slowly added, and the resulting mixture was stirred at room temperature for 15 minutes. 1,2-Dichloro-3-fluorobenzene (23.8 μL, 206 μmol) was added and the mixture was stirred at 70° C. for 3 hours. The mixture was concentrated, treated with 1.25M HCl in EtOH (578 μL, 722 μmol), then stirred overnight at room temperature. The product was concentrated under vacuum, redissolved in 1:1AcOH:H2O, filtered, and purified by preparative HPLC to yield the title compound as a mono-TFA salt (5.3 mg, 97% purity). MS m/z: [M+H] calcd for C16H23Cl2NO, 316.12. found 316.3. the mixture was stirred at 70° C. for 3 hours The mixture was concentrated stirred overnight at room temperature The product was concentrated under vacuum redissolved in 1:1AcOH H2O, filtered purified by preparative HPLC

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

Procedure: (S)-3-((S)-1-Hydroxy-3-methylbutyl)pyrrolidine-1-carboxylic acid t-butyl ester (50 mg, 0.2 mmol) was dissolved in DMF (940 μL, 12 mmol). Sodium hydride (5.6 mg, 233 μmol) was then slowly added, and the mixture was stirred at room temperature for 15 minutes. 1,2-Dichloro-3-fluoro-benzene (64.1 mg, 388 μmol) was added. The mixture was stirred at 70° C. for 3 hours, then concentrated under vacuum. 1.2M HCl in EtOH (1.1 mL, 1.3 mmol) was added, and the mixture was stirred overnight. The product was concentrated and purified by preparative HPLC to yield the title compound as a mono-TFA salt (37.4 mg, 100% purity). MS m/z: [M+H] calcd for C15H21Cl2NO, 302.10. found 302.2. The mixture was stirred at 70° C. for 3 hours concentrated under vacuum the mixture was stirred overnight The product was concentrated purified by preparative HPLC

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

Procedure: (S)-3-((S)-1-Hydroxybutyl)pyrrolidine-1-carboxylic acid t-butyl ester (50 mg, 0.2 mmol) was dissolved in DMF (1.0 mL, 13 mmol). NaH (5.9 mg, 246 μmol) was slowly added and the mixture was stirred at room temperature for 15 minutes. 1,2-Dichloro-3-fluorobenzene (67.8 mg, 411 μmol) was added. The mixture was stirred at 70° C. for 3 hours, then concentrated. 1.2M HCl in EtOH (1.0 mL, 1.2 mmol) was added, and the mixture was stirred overnight. The product was concentrated and purified by preparative HPLC to yield the title compound as a mono-TFA salt (19 mg, 100% purity). MS in/z: [M+H]+ calcd for C14H19Cl2NO, 288.08. found 288.0. The mixture was stirred at 70° C. for 3 hours concentrated the mixture was stirred overnight The product was concentrated purified by preparative HPLC

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

Procedure: 3-(1-Hydroxy-3-methylsulfanylpropyl)pyrrolidine-1-carboxylic acid t-butyl ester (49 mg, 180 μmol) was dissolved in DMF (550 μL). 60% NaH in oil (60:40, NaH:mineral oil, 8.5 mg, 210 μmol) was slowly added, and the mixture was stirred for 15 minutes at room temperature. 1,2-Dichloro-3-fluorobenzene (62 μL, 530 μmol) was added, and the resulting mixture was heated at 90° C. for 24 hours. The reaction was quenched with MeOH, and DMF/MeOH was removed in vacuo. The product was dissolved in 1.25M HCl in EtOH (1.4 mL, 1.8 mmol) and stirred overnight at room temperature. The product was then purified by preparative HPLC to yield the title compound as a mixture of all 4 stereoisomers (R,R, R,S, S,S, and S,R) as mono-TFA salts (20 mg, 100% purity). MS m/z: [M+H] calcd for C14H19Cl2NOS, 320.06. found 320.0. the resulting mixture was heated at 90° C. for 24 hours The reaction was quenched with MeOH, and DMF/MeOH was removed in vacuo stirred overnight at room temperature The product was then purified by preparative HPLC

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

Procedure: (R)-3-[(S)—Hydroxy(tetrahydropyran-4-yl)methyl]pyrrolidine-1-carboxylic acid t-butyl ester (30 mg, 0.1 mmol) was dissolved in DMF (380 μL). NaH (3.0 mg, 126 μmol) was added and the mixture was stirred at room temperature for 15 minutes. 1,2-Dichloro-3-fluorobenzene (34.7 mg, 210 μmol) was added and the mixture was stirred at 100° C. overnight. The mixture was concentrated then dissolved in 1.2M HCl in EtOH (510 μL, 610 μmol) and stirred overnight. The product was concentrated and purified by preparative HPLC to yield the title compound as a mono-TFA salt (10.8 mg, purity 100%). MS m/z: [M+H]+ calcd for C16H21Cl2NO2, 330.10. found 330.0. the mixture was stirred at 100° C. overnight The mixture was concentrated stirred overnight The product was concentrated purified by preparative HPLC

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

Procedure: (R)-3-[(S)—Hydroxy(tetrahydropyran-4-yl)methyl]pyrrolidine-1-carboxylic acid t-butyl ester (30 mg, 0.1 mmol) was dissolved in DMF (380 μL). NaH (3.0 mg, 126 μmol) was added and the mixture was stirred at room temperature for 15 minutes. 1,2-Dichloro-3-fluorobenzene (34.7 mg, 210 μmol) was added and the mixture was stirred at 100° C. overnight. The mixture was concentrated then dissolved in 1.2M HCl in EtOH (510 μL, 610 μmol) and stirred overnight. The product was concentrated and purified by preparative HPLC to yield the title compound as a mono-TFA salt (10.8 mg, purity 100%). MS m/z: [M+H]+ calcd for C16H21Cl2NO2, 330.10. found 330.0. the mixture was stirred at 100° C. overnight The mixture was concentrated stirred overnight The product was concentrated purified by preparative HPLC

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

Procedure: 3-(1-Hydroxy-3-methylsulfanylpropyl)pyrrolidine-1-carboxylic acid t-butyl ester (49 mg, 180 μmol) was dissolved in DMF (550 μL). 60% NaH in oil (60:40, NaH:mineral oil, 8.5 mg, 210 μmol) was slowly added, and the mixture was stirred for 15 minutes at room temperature. 1,2-Dichloro-3-fluorobenzene (62 μL, 530 μmol) was added, and the resulting mixture was heated at 90° C. for 24 hours. The reaction was quenched with MeOH, and DMF/MeOH was removed in vacuo. The product was dissolved in 1.25M HCl in EtOH (1.4 mL, 1.8 mmol) and stirred overnight at room temperature. The product was then purified by preparative HPLC to yield the title compound as a mixture of all 4 stereoisomers (R,R, R,S, S,S, and S,R) as mono-TFA salts (20 mg, 100% purity). MS m/z: [M+H]+ calcd for C14H19Cl2NOS, 320.06; found 320.0. the resulting mixture was heated at 90° C. for 24 hours The reaction was quenched with MeOH, and DMF/MeOH was removed in vacuo stirred overnight at room temperature The product was then purified by preparative HPLC

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

Procedure: (R)-3-[(S)-Hydroxy(tetrahydropyran-4-yl)methyl]pyrrolidine-1-carboxylic acid t-butyl ester (30 mg, 0.1 mmol) was dissolved in DMF (380 μL). NaH (3.0 mg, 126 μmol) was added and the mixture was stirred at room temperature for 15 minutes. 1,2-Dichloro-3-fluorobenzene (34.7 mg, 210 μmol) was added and the mixture was stirred at 100° C. overnight. The mixture was concentrated then dissolved in 1.2M HCl in EtOH (510 μL, 610 μmol) and stirred overnight. The product was concentrated and purified by preparative HPLC to yield the title compound as a mono-TFA salt (10.8 mg, purity 100%). MS m/z: [M+H]+ calcd for C16H21Cl2NO2, 330.10; found 330.0. the mixture was stirred at 100° C. overnight The mixture was concentrated stirred overnight The product was concentrated purified by preparative HPLC

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

Procedure: (S)-3-(R)-2-Ethyl-1-hydroxybutyl)pyrrolidine-1-carboxylic acid t-butyl ester (28 mg, 0.1 mmol) was dissolved in DMF (380 μL, 4.9 mmol). 60% Sodium hydride in oil (0.4:0.6, sodium hydride:mineral oil, 18.6 mg, 310 μmmol) was slowly added, and the resulting mixture was stirred at room temperature for 15 minutes. 1,2-Dichloro-3-fluorobenzene (23.8 μL, 206 μmmol) was added and the mixture was stirred at 70° C. for 3 hours. The mixture was concentrated, treated with 1.25M HCl in EtOH (578 μL, 722 μmmol), then stirred overnight at room temperature. The product was concentrated under vacuum, redissolved in 1:1AcOH:H2O, filtered, and purified by preparative HPLC to yield the title compound as a mono-TFA salt (5.3 mg, 97% purity). MS m/z: [M+H]+ calcd for C16H23Cl2NO, 316.12; found 316.3. the mixture was stirred at 70° C. for 3 hours The mixture was concentrated treated with 1.25M HCl in EtOH (578 μL, 722 μmmol) stirred overnight at room temperature The product was concentrated under vacuum redissolved in 1:1AcOH H2O, filtered purified by preparative HPLC

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

Procedure: (S)-3-((S)-1-Hydroxy-3-methylbutyl)pyrrolidine-1-carboxylic acid t-butyl ester (50 mg, 0.2 mmol) was dissolved in DMF (940 μL, 12 mmol). Sodium hydride (5.6 mg, 233 μmmol) was then slowly added, and the mixture was stirred at room temperature for 15 minutes. 1,2-Dichloro-3-fluoro-benzene (64.1 mg, 388 μmmol) was added. The mixture was stirred at 70° C. for 3 hours, then concentrated under vacuum. 1.2M HCl in EtOH (1.1 mL, 1.3 mmol) was added, and the mixture was stirred overnight. The product was concentrated and purified by preparative HPLC to yield the title compound as a mono-TFA salt (37.4 mg, 100% purity). MS m/z: [M+H]+ calcd for C15H21Cl2NO, 302.10; found 302.2. The mixture was stirred at 70° C. for 3 hours concentrated under vacuum the mixture was stirred overnight The product was concentrated purified by preparative HPLC