1: 3-amino-propan-1-ol With 2-methyl-but-2-ene; triethylamine; trichlorophosphate in chloroform T=-5 - 20°C; 2: 1-amino-2-chloroethane hydrochloride With triethylamine in chloroform T=20°C; 1 h; 3: chloroacetyl chloride in chloroform T=40°C; 1 h;

sodium tetrahydroborate in isopropyl alcohol 0.666667 h;