129150-68-1

Step B: Synthesis of tert-butyl [2-(3-hydroxyphenyl)ethyl]carbamate; 1 g of 10% Pd/C catalyst was added to a 100 mL ethanol solution containing 13 g (0.039 mol) of tert-butyl [2-(3-benzyloxyphenyl)ethyl]carbamate. The reaction mixture was subjected to hydrogenation at 40 psi hydrogen pressure overnight. Upon completion of the reaction, the catalyst was removed by filtration and washed with ethanol. Subsequently, the solvent was evaporated under reduced pressure to give 9.4 g of tert-butyl 3-hydroxyphenethylcarbamate as a colorless oil in quantitative yield.1H-NMR (CDCl3) δ: 7.22-7.12 (m, 1H); 6.78-6.66 (m, 3H); 4.56 (bs, 1H); 3.42-3.30 (m, 2H); 2.74 (t, 2H); 1.44 (s, 9H).

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