1: (methoxymethyl)-triphenylphosphonium chloride With n-butyllithium in tetrahydrofuran T=-50 - -25°C; 0.5 h; 2: 3-benzyl-3-azabicyclo[3.2.1]octan-8-one in tetrahydrofuran T=-25 - 20°C; 3: With hydrogenchloride; sodium hydroxide; water more than 3 stages;

1: With sodium tetrahydroborate in methanol T=0°C; 2 h; 2: With water in ethyl acetate