Multi-step reaction with 6 steps
1: 74 percent / DIC, HOBt, Et3N / CH2Cl2 / 12 h / Ambient temperature
2: 1.) DTT, Et3N, 2.) Et3N / 1.) CH2Cl2, rt, 2 h, 2.) CH2Cl2, rt, 2 h
3: 89 percent / Pd(PPh3)4, morpholine / tetrahydrofuran / 1 h / Ambient temperature
4: 78 percent / DIC, HOBt, Et3N / CH2Cl2 / 12 h / Ambient temperature
5: 87 percent / Pd(PPh3)4, 1,3-dimethylbarbituric acid / tetrahydrofuran / 1 h / Ambient temperature
6: 83 percent / EDC, HOBt, Et3N / CH2Cl2 / 12 h / Ambient temperature
With
morpholine; tetrakis(triphenylphosphine) palladium(0); 1,3-dimethylbarbituric acid; DL-dithiothreitol; benzotriazol-1-ol; N-(3-dimethylaminopropyl)-N-ethylcarbodiimide; dacarbazine; triethylamine;
In
tetrahydrofuran; dichloromethane;
DOI:10.1016/S0968-0896(98)00251-X