Dichloromethane → Chloromethyl 2-{[(tert-butoxy)carbonyl]amino}-2-methylpropanoate

反応式

[C:1]([O:5][C:6]([NH:8][C:9]([CH3:14])([CH3:13])[C:10]([OH:12])=[O:11])=[O:7])([CH3:4])([CH3:3])[CH3:2].C([O-])(O)=O.[Na+].[CH2:20](Cl)[Cl:21]>O>[C:1]([O:5][C:6]([NH:8][C:9]([CH3:14])([CH3:13])[C:10]([O:12][CH2:20][Cl:21])=[O:11])=[O:7])([CH3:4])([CH3:2])[CH3:3]

参加物

実験手順

The title compound was prepared according to the procedure as described in Example 17 Step 1 using 2-((tert-butoxycarbonyl)amino)-2-methylpropanoic acid (1.07 g, 5.29 mmol) in DCM (25 mL) and H2O (25 mL), NaHCO3 (1.78 g, 21.2 mmol), TBAHSO4 (0.18 g, 0.53 mmol) and a solution of chloromethyl sulfochloridate (638 μL, 6.35 mmol) in DCM (5 mL). The title compound was obtained as a white solid (1.16 g, 87.7%). The title compound was characterized by 1H NMR as shown below: