in tetrahydrofuran; diethyl ether 0.0833333 h;

1: in acetonitrile P=760.051 Torr; 0.166667 h; Inert atmosphere; 2: With tributylphosphine; di-tert-butylazodicarboxylate in acetonitrile Mitsunobu reaction; P=760.051 Torr; Inert atmosphere;

1: azidobenzoic acid in toluene T=100°C; Curtius rearrangement; 2 h; 2: in toluene T=100°C; 3: benzyl-methyl-amine With triethylamine in acetonitrile T=70°C; Further stages.;