Multi-step reaction with 4 steps
1: 1.) N-methylmorpholine (NMM) , isobutyl chloroformate, 2.) N-methylmorpholine (NMM) / 1.) THF, -15 deg C, 10 min, 2.) acetonitrile , a.) THF, -15 deg C, 2 h, b.) RT, 1 h
2: 2 N HCl / ethyl acetate / 0.5 h / Ambient temperature
3: 1.) N-methylmorpholine (NMM), isobutyl chloroformate, 2.) N-methylmorpholine (NMM) / 1.) THF, -15 deg C, 10 min, 2.) acetonitrile, a.) THF, -15 deg C, 2 h, b.) RT, 1 h
4: 2 N HCl / ethyl acetate / 0.5 h / Ambient temperature
With
4-methyl-morpholine; hydrogenchloride; isobutyl chloroformate;
In
ethyl acetate;