1: With dicobalt octacarbonyl; triethylamine in diethyl ether T=20°C; deoximation; 0.25 h; 2: With water in methanol T=20°C; Hydrolysis; 0.5 h; 3: With sodium tetrahydroborate in methanol T=0°C; Reduction; 2 h;

1: With dicobalt octacarbonyl; triethylamine in diethyl ether T=20°C; deoximation; 0.25 h; 2: With water in methanol T=20°C; Dehydration; 0.5 h; Title compound not separated from byproducts;