S-[3-[(2-methylpropan-2-yl)oxycarbonylamino]propyl] ethanethioate

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:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of NaH (0.57 g, 60%, 14.25 mmol) in 20 ml of THF at 0° C. was added S-3-(tert-butoxycarbonylamino)propyl ethanethioate (1.25 g, 5.36 mmol) under Ar. After stirring at 0° C. for 30 min, MeI (1.0 ml, 16.06 mmol) was added to the mixture. Stirring was continued at 0° C. for 2 h then RT overnight. The mixture was concentrated, redissolved in 120 ml of EtAc/Hexane (1:2), washed with 1 M NaH2PO4 NaCl (conc.), dried over MgSO4, filtered, evaporated and purified on SiO2 chromatography eluted with EtAc/Hexane (1:7) to afford 1.121 g (85%) of the title compound. 1H NMR (CDCl3) 3.69 (t, 2H, J=7.3 Hz), 2.41 (t, 2H, J=7.3 Hz), 2.39 (s, 3H), 2.03 (s, 3H), 1.76 (m, 2H), 1.47 (s, 9H); 13C NMR 173.21, 153.39, 83.28, 43.67, 31.84, 28.26, 28.19, 27.11, 15.65; MS m/z+ 270.0 (M+Na). Stirring was continued at 0° C. for 2 h RT overnight The mixture was concentrated redissolved in 120 ml of EtAc/Hexane (1:2) washed with 1 M NaH2PO4 NaCl (conc.) dried over MgSO4 filtered evaporated purified on SiO2 chromatography eluted with EtAc/Hexane (1:7)

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: tert-Butyl 3-hydroxypropylcarbamate (3.22 g, 18.37 mmol) in 100 ml of DCM at 0° C. was added thiolacetic acid (2.0 ml, 26.73 mmol) and triphenylphosphine (7.0 g, 26.73 mmol) under Ar. After stirred at 0° C. for 15 min, DIAD (6.0 ml, 28.93) was added. The mixture was stirred at 0° C. for 2 h then RT overnight. The mixture was concentrated, diluted with 120 ml of EtAc/Hexane (1:2), filtered through celite. The solution was washed with NaHCO3 (conc.)/NaCl (conc.) and 1 M NaH2PO4 respectively, dried over MgSO4, filtered, evaporated and purified on SiO2 chromatography eluted with EtAc/Hexane (1:7 to 1:6) to afford 3.22 g (75%) of the title compound. 1H NMR (CDCl3) 3.09 (t, 2H, J=6.5 Hz), 2.84 (t, 2H, J=6.9 Hz), 2.27 (s, 3H), 1.69 (dt, 2H, J=6.8, 13.5 Hz), 1.38 (s, 9H); 13C NMR 196.35, 156.16, 79.50, 39.26, 30.79, 30.24, 28.61, 26.44; MS m/z+ 256.0 (M+Na). The mixture was stirred at 0° C. for 2 h RT overnight The mixture was concentrated diluted with 120 ml of EtAc/Hexane (1:2) filtered through celite The solution was washed with NaHCO3 (conc.)/NaCl (conc.) and 1 M NaH2PO4 respectively dried over MgSO4 filtered evaporated purified on SiO2 chromatography eluted with EtAc/Hexane (1:7 to 1:6)

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: tert-Butyl 3-hydroxypropylcarbamate (3.22 g, 18.37 mmol) in 100 ml of DCM at 0° C. was added thiolacetic acid (2.0 ml, 26.73 mmol) and triphenylphosphine (7.0 g, 26.73 mmol) under Ar. After stirred at 0° C. for 15 min, DIAD (6.0 ml, 28.93) was added. The mixture was stirred at 0° C. for 2 h then RT overnight. The mixture was concentrated, diluted with 120 ml of EtAc/Hexane (1:2), filtered through celite. The solution was washed with NaHCO3 (conc.)/NaCl (conc.) and 1 M NaH2PO4 respectively, dried over MgSO4, filtered, evaporated and purified on SiO2 chromatography eluted with EtAc/Hexane (1:7 to 1:6) to afford 3.22 g (75%) of the title compound. 1H NMR (CDCl3) 3.09 (t, 2H, J=6.5 Hz), 2.84 (t, 2H, J=6.9 Hz), 2.27 (s, 3H), 1.69 (dt, 2H, J=6.8, 13.5 Hz), 1.38 (s, 9H); 13C NMR 196.35, 156.16, 79.50, 39.26, 30.79, 30.24, 28.61, 26.44; MS m/z+ 256.0 (M+Na). The mixture was stirred at 0° C. for 2 h RT overnight The mixture was concentrated diluted with 120 ml of EtAc/Hexane (1:2) filtered through celite The solution was washed with NaHCO3 (conc.)/NaCl (conc.) and 1 M NaH2PO4 respectively dried over MgSO4 filtered evaporated purified on SiO2 chromatography eluted with EtAc/Hexane (1:7 to 1:6)

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of NaH (0.57 g, 60%, 14.25 mmol) in 20 ml of THF at 0° C. was added S-3-(tert-butoxycarbonylamino)propyl ethanethioate (1.25 g, 5.36 mmol) under Ar. After stirring at 0° C. for 30 min, MeI (1.0 ml, 16.06 mmol) was added to the mixture. Stirring was continued at 0° C. for 2 h then RT overnight. The mixture was concentrated, redisolved in 120 ml of EtAc/Hexane (1:2), washed with 1 M NaH2PO4NaCl (conc.), dried over MgSO4, filtered, evaporated and purified on SiO2 chromatography eluted with EtAc/Hexane (1:7) to afford 1.121 g (85%) of the title compound. 1H NMR (CDCl3) 3.69 (t, 2H, J=7.3 Hz), 2.41 (t, 2H, J=7.3 Hz), 2.39 (s, 3H), 2.03 (s, 3H), 1.76 (m, 2H), 1.47 (s, 9H); 13C NMR 173.21, 153.39, 83.28, 43.67, 31.84, 28.26, 28.19, 27.11, 15.65; MS m/z+270.0 (M+Na). Stirring was continued at 0° C. for 2 h RT overnight The mixture was concentrated washed with 1 M NaH2PO4NaCl (conc.) dried over MgSO4 filtered evaporated purified on SiO2 chromatography eluted with EtAc/Hexane (1:7)

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of NaH (0.57 g, 60%, 14.25 mmol) in 20 ml of THF at 0° C. was added S-3-(tert-butoxycarbonylamino)propyl ethanethioate (1.25 g, 5.36 mmol) under Ar. After stirring at 0° C. for 30 min, MeI (1.0 ml, 16.06 mmol) was added to the mixture. Stirring was continued at 0° C. for 2 h then RT overnight. The mixture was concentrated, redisolved in 120 ml of EtAc/Hexane (1:2), washed with 1 M NaH2PO4NaCl (conc.), dried over MgSO4, filtered, evaporated and purified on SiO2 chromatography eluted with EtAc/Hexane (1:7) to afford 1.121 g (85%) of the title compound. 1H NMR (CDCl3) 3.69 (t, 2H, J=7.3 Hz), 2.41 (t, 2H, J=7.3 Hz), 2.39 (s, 3H), 2.03 (s, 3H), 1.76 (m, 2H), 1.47 (s, 9H); 13C NMR 173.21, 153.39, 83.28, 43.67, 31.84, 28.26, 28.19, 27.11, 15.65; MS m/z+270.0 (M+Na). Stirring was continued at 0° C. for 2 h RT overnight The mixture was concentrated washed with 1 M NaH2PO4NaCl (conc.) dried over MgSO4 filtered evaporated purified on SiO2 chromatography eluted with EtAc/Hexane (1:7)

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of NaH (0.57 g, 60%, 14.25 mmol) in 20 ml of THF at 0° C. was added S-3-(tert-butoxycarbonylamino)propyl ethanethioate (1.25 g, 5.36 mmol) under Ar. After stirring at 0° C. for 30 min, MeI (1.0 ml, 16.06 mmol) was added to the mixture. Stirring was continued at 0° C. for 2 h then RT overnight. The mixture was concentrated, redisolved in 120 ml of EtAc/Hexane (1:2), washed with 1 M NaH2PO4NaCl (conc.), dried over MgSO4, filtered, evaporated and purified on SiO2 chromatography eluted with EtAc/Hexane (1:7) to afford 1.121 g (85%) of the title compound. 1H NMR (CDCl3) 3.69 (t, 2H, J=7.3 Hz), 2.41 (t, 2H, J=7.3 Hz), 2.39 (s, 3H), 2.03 (s, 3H), 1.76 (m, 2H), 1.47 (s, 9H); 13C NMR 173.21, 153.39, 83.28, 43.67, 31.84, 28.26, 28.19, 27.11, 15.65; MS m/z+270.0 (M+Na). Stirring was continued at 0° C. for 2 h RT overnight The mixture was concentrated washed with 1 M NaH2PO4NaCl (conc.) dried over MgSO4 filtered evaporated purified on SiO2 chromatography eluted with EtAc/Hexane (1:7)

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: tert-Butyl 3-hydroxypropylcarbamate (3.22 g, 18.37 mmol) in 100 ml of DCM at 0° C. was added thiolacetic acid (2.0 ml, 26.73 mmol) and triphenylphosphine (7.0 g, 26.73 mmol) under Ar. After stirred at 0° C. for 15 min, DIAD (6.0 ml, 28.93) was added. The mixture was stirred at 0° C. for 2 h then RT overnight. The mixture was concentrated, diluted with 120 ml of EtAc/Hexane (1:2), filtered through celite. The solution was washed with NaHCO3 (conc.)/NaCl (conc.) and 1 M NaH2PO4 respectively, dried over MgSO4, filtered, evaporated and purified on SiO2 chromatography eluted with EtAc/Hexane (1:7 to 1:6) to afford 3.22 g (75%) of the title compound. 1H NMR (CDCl3) 3.09 (t, 2H, J=6.5 Hz), 2.84 (t, 2H, J=6.9 Hz), 2.27 (s, 3H), 1.69 (dt, 2H, J=6.8, 13.5 Hz), 1.38 (s, 9H); 13C NMR 196.35, 156.16, 79.50, 39.26, 30.79, 30.24, 28.61, 26.44; MS m/z+256.0 (M+Na). The mixture was stirred at 0° C. for 2 h RT overnight The mixture was concentrated diluted with 120 ml of EtAc/Hexane (1:2) filtered through celite The solution was washed with NaHCO3 (conc.)/NaCl (conc.) and 1 M NaH2PO4 respectively dried over MgSO4 filtered evaporated purified on SiO2 chromatography eluted with EtAc/Hexane (1:7 to 1:6)

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of NaH (0.57 g, 60%, 14.25 mmol) in 20 ml of THF at 0° C. was added S-3-(tert-butoxycarbonylamino)propyl ethanethioate (1.25 g, 5.36 mmol) under Ar. After stirring at 0° C. for 30 min, MeI (1.0 ml, 16.06 mmol) was added to the mixture. Stirring was continued at 0° C. for 2 h then RT overnight. The mixture was concentrated, redisolved in 120 ml of EtAc/Hexane (1:2), washed with 1 M NaH2PO4 NaCl (conc.), dried over MgSO4, filtered, evaporated and purified on SiO2 chromatography eluted with EtAc/Hexane (1:7) to afford 1.121 g (85%) of the title compound. 1H NMR (CDCl3) 3.69 (t, 2H, J=7.3 Hz), 2.41 (t, 2H, J=7.3 Hz), 2.39 (s, 3H), 2.03 (s, 3H), 1.76 (m, 2H),1.47 (s, 9H); 13C NMR 173.21, 153.39, 83.28, 43.67, 31.84, 28.26, 28.19, 27.11, 15.65; MS m/z+ 270.0 (M+Na). Stirring was continued at 0° C. for 2 h RT overnight The mixture was concentrated washed with 1 M NaH2PO4 NaCl (conc.) dried over MgSO4 filtered evaporated purified on SiO2 chromatography eluted with EtAc/Hexane (1:7)

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: tert-Butyl 3-hydroxypropylcarbamate (3.22 g, 18.37 mmol) in 100 ml of DCM at 0° C. was added thiolacetic acid (2.0 ml, 26.73 mmol) and triphenylphosphine (7.0 g, 26.73 mmol) under Ar. After stirred at 0° C. for 15 min, DIAD (6.0 ml, 28.93) was added. The mixture was stirred at 0° C. for 2 h then RT overnight. The mixture was concentrated, diluted with 120 ml of EtAc/Hexane (1:2), filtered through celite. The solution was washed with NaHCO3 (conc.)/NaCl (conc.) and 1 M NaH2PO4 respectively, dried over MgSO4, filtered, evaporated and purified on SiO2 chromatography eluted with EtAc/Hexane (1:7 to 1:6) to afford 3.22 g (75%) of the title compound. 1H NMR (CDCl3) 3.09 (t, 2H, J=6.5 Hz), 2.84 (t, 2H, J=6.9 Hz), 2.27 (s, 3H), 1.69 (dt, 2H, J=6.8, 13.5 Hz),1.38 (s, 9H); 13C NMR 196.35, 156.16, 79.50, 39.26, 30.79, 30.24, 28.61, 26.44; MS m/z+ 256.0 (M+Na). The mixture was stirred at 0° C. for 2 h RT overnight The mixture was concentrated diluted with 120 ml of EtAc/Hexane (1:2) filtered through celite The solution was washed with NaHCO3 (conc.)/NaCl (conc.) and 1 M NaH2PO4 respectively dried over MgSO4 filtered evaporated purified on SiO2 chromatography eluted with EtAc/Hexane (1:7 to 1:6)