hydrogenchloride in water 8 h; Heating;

1: 87 percent / acetonitrile / 2 h / Heating 2: 45 percent / Aspergillus melleus acylase I; LiOH / H2O / 72 h / 20 °C / pH 7 3: 88 percent / aq. HCl / H2O / 8 h / Heating View Scheme

1: 53 percent / sodium ethoxide / ethanol / 24 h / Heating 2: 87 percent / acetonitrile / 2 h / Heating 3: 45 percent / Aspergillus melleus acylase I; LiOH / H2O / 72 h / 20 °C / pH 7 4: 88 percent / aq. HCl / H2O / 8 h / Heating View Scheme

1: conc. hydrochloric acid / H2O / 24 h / Heating 2: 61.5 percent / 2 N NaOH / 2 h / Ambient temperature 3: NaOH, CoCl2 / H2O / 48 h / 37 °C / aminoacylase from Aspergillus 4: 4 N aq. HCl / 3 h / Heating View Scheme