1: n-butyl-magnesium chloride With zinc(II) chloride in diethyl ether T=-78 - 0°C; 2: 7-chlorocarbonylheptanoic acid ethyl ester With tetrakis(triphenylphosphine) palladium(0) in tetrahydrofuran; diethyl ether T=0 - 20°C; 2 h;

in diethyl ether 2 h; Ambient temperature;

in diethyl ether 2 h; Ambient temperature;

1: With lithium hydroxide; water in tetrahydrofuran T=20°C; 18 h; 2: With hydrogenchloride in water pH=4;