1: With trimethylamine in dichloromethane T=0 - 20°C; 2 h; 2: With sodium hydroxide; water in DMF (N,N-dimethyl-formamide) 2 h;

1: With methanol; lithium hydroxide in tetrahydrofuran 5 h; 2: With hydrogenchloride; water in tetrahydrofuran; methanol 5 h;