oxygen in acetonitrile 5 h; tyrosinase, phosphate buffer pH 7;

1: 70 percent / tyrosinase; phosphate buffer; O2 / H2O; acetonitrile / 5 h / 20 °C / pH 7.0 2: 70 percent / N'-(3-dimethylaminopropyl)-N-ethylcarbodiimide; HOBt / CH2Cl2 / 0 - 20 °C 3: 66 percent / tyrosinase; phosphate buffer; O2 / H2O; acetonitrile / 6 h / 20 °C / pH 7.0 View Scheme