反应详情

The title compound was prepared according to the procedure as described in Example 17 Step 1 using 2-((tert-butoxycarbonyl)amino)-3-methylbutanoic acid (1 g, 4.6 mmol) in DCM (25 mL) and H2O (25 mL), NaHCO3 (1.55 g, 18.4 mmol), TBAHSO4 (156 mg, 0.46 mmol) and a solution of chloromethyl sulfochloridate (559 μL, 5.5 mmol) in DCM (5 mL). The title compound was obtained as colorless oil (877 mg, 71.8%). The title compound was characterized by 1H NMR as shown below:

1. customThe title compound was prepared