1: 1.) NaH / 1.) THF, 2.) THF, RT, 2 h 2: 76 percent / H2 / 30percent Pd/C / ethyl acetate 3: 80 percent / K2CO3 / dimethylformamide / 18 h / Ambient temperature View Scheme

1: 1.) NaH / 1.) THF, 2.) THF, RT, 2 h 2: 76 percent / H2 / 30percent Pd/C / ethyl acetate View Scheme