1: in tetrahydrofuran 12 h; Reflux; 2: With water; ammonium chloride in tetrahydrofuran 1 h;

1: Bromure de phenyl magnesium; 2-amino-benzonitrile in tetrahydrofuran 0.25 h; Heating; 2: 2-bromo-isobutyric acid bromide in tetrahydrofuran 3 h; Heating; Further stages.;

1.) ether, reflux, 2 h; 2.) reflux, 2 h; Yield given. Multistep reaction;