1: With di-isopropyl azodicarboxylate; triphenylphosphine in tetrahydrofuran T=-30°C; 0.333333 h; 2: With diphenyl phosphoryl azide in tetrahydrofuran T=-30 - 20°C;

1: (10R,11R)-11-{[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]methyl}-8-fluoro-10,11-dihydro-5H-dibenzo[a,d]cyclohepten-10-ol; triphenylphosphine With di-isopropyl azodicarboxylate in tetrahydrofuran T=-30°C; 0.333333 h; 2: diphenyl phosphoryl azide in tetrahydrofuran T=-30 - 20°C;