1: With Schwartz's reagent in tetrahydrofuran T=20°C; 2: With bromine in tetrahydrofuran T=0°C; 0.166667 h;

titanium tetrachloride; magnesium in ethylene glycol dimethyl ether; dichloromethane T=0 - 25°C; 12 h; Inert atmosphere; optical yield given as percent dediastereoselective reaction;

1: With 1-hexene; diisobutylaluminium hydride T=20°C; 2 h; 2: With N-bromosuccinmide T=-50 - 20°C; Further stages.;