chloromethyl 2-[(2-methylpropan-2-yl)oxycarbonylamino]acetate

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

Procedure: The title compound was prepared according to the procedure as described in Example 14 Step 2 using N-(3-(5-(4-chlorophenyl)-1H-pyrrolo[2,3-b]pyridine-3-carbonyl)-2,4-difluorophenyl)propane-1-sulfonamide (0.1 g, 0.2 mmol) in DMF (0.9 mL), KOH (23 mg, 0.4 mmol), a solution of chloromethyl 2-((tert-butoxycarbonyl)amino)acetate (46 mg, 0.2 mmol) in DMF (100 mL). The title compound was purified by a silica gel column chromatography (PE/EtOAc (v/v)=4/1 to 3/1) and was obtained as a white solid (46 mg, 33.3%). The title compound was characterized by The title compound was purified by a silica gel column chromatography (PE/EtOAc (v/v)=4/1 to 3/1)

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

Procedure: The title compound was prepared according to the procedure as described in Example 17 Step 1 using 2-((tert-butoxycarbonyl)amino)acetic acid (1 g, 5.7 mmol) in DCM (25 mL) and H2O (25 mL), NaHCO3 (1.92 g, 22.8 mmol), TBAHSO4 (194 mg, 0.57 mmol) and a solution of chloromethyl sulfochloridate (693 mL, 6.8 mmol) in DCM (5 mL). The title compound was obtained as colorless oil (911 mg, 71.3%). The title compound was prepared

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

Procedure: The title compound was prepared according to the procedure as described in Example 17 Step 1 using 2-((tert-butoxycarbonyl)amino)acetic acid (1 g, 5.7 mmol) in DCM (25 mL) and H2O (25 mL), NaHCO3 (1.92 g, 22.8 mmol), TBAHSO4 (194 mg, 0.57 mmol) and a solution of chloromethyl sulfochloridate (693 mL, 6.8 mmol) in DCM (5 mL). The title compound was obtained as colorless oil (911 mg, 71.3%). The title compound was prepared

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

Procedure: The title compound was prepared according to the procedure as described in Example 14 Step 2 using N-(3-(5-(4-chlorophenyl)-1H-pyrrolo[2,3-b]pyridine-3-carbonyl)-2,4-difluorophenyl)propane-1-sulfonamide (0.1 g, 0.2 mmol) in DMF (0.9 mL), KOH (23 mg, 0.4 mmol), a solution of chloromethyl 2-((tert-butoxycarbonyl)amino)acetate (46 mg, 0.2 mmol) in DMF (100 mL). The title compound was purified by a silica gel column chromatography (PE/EtOAc (v/v)=4/1 to 3/1) and was obtained as a white solid (46 mg, 33.3%). The title compound was characterized by The title compound was purified by a silica gel column chromatography (PE/EtOAc (v/v)=4/1 to 3/1)

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

Procedure: The title compound was prepared according to the procedure as described in Example 17 Step 1 using 2-((tert-butoxycarbonyl)amino)acetic acid (1 g, 5.7 mmol) in DCM (25 mL) and H2O (25 mL), NaHCO3 (1.92 g, 22.8 mmol), TBAHSO4 (194 mg, 0.57 mmol) and a solution of chloromethyl sulfochloridate (693 mL, 6.8 mmol) in DCM (5 mL). The title compound was obtained as colorless oil (911 mg, 71.3%). The title compound was prepared