[NH2:1][C:2]1[CH:14]=[CH:13][C:5]([C:6]([O:8][C:9]([CH3:12])([CH3:11])[CH3:10])=[O:7])=[C:4]([O:15][CH3:16])[CH:3]=1.[C:17](Cl)(Cl)=[O:18]>>[N:1]([C:2]1[CH:14]=[CH:13][C:5]([C:6]([O:8][C:9]([CH3:11])([CH3:12])[CH3:10])=[O:7])=[C:4]([O:15][CH3:16])[CH:3]=1)=[C:17]=[O:18]tert-Butyl 4-isocyanato-2-methoxy-benzoate was prepared from tert-butyl 4-amino-2-methoxy-benzoate and phosgene using the procedure of step 2 of Example 1.
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