[Cl:1][C:2]1[CH:3]=[C:4]([C:9]2([OH:23])[CH2:15][O:14][CH2:13][CH2:12][N:11]([C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH2:10]2)[CH:5]=[CH:6][C:7]=1[Cl:8].[CH2:24](I)[CH3:25]>>[Cl:1][C:2]1[CH:3]=[C:4]([C:9]2([O:23][CH2:24][CH3:25])[CH2:15][O:14][CH2:13][CH2:12][N:11]([C:16]([O:18][C:19]([CH3:20])([CH3:22])[CH3:21])=[O:17])[CH2:10]2)[CH:5]=[CH:6][C:7]=1[Cl:8]Using tert-butyl (6RS)-6-(3,4-dichlorophenyl)-6-hydroxy-1,4-oxazepane-4-carboxylate (158 mg) and ethyl iodide (0.052 mL), and by a method similar to that of Example 17, step A), the title compound (160 mg) was obtained.
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