Multi-step reaction with 6 steps
1: 95 percent / triethylamine, 1-hydroxybenzotriazole (HOBT), dicyclohexylcarbodiimide (DCC) / tetrahydrofuran; CHCl3 / Ambient temperature
2: 93 percent / 1 N NaOH / methanol / a) 0 deg C, 1 h, b) RT, 4 h
3: 95 percent / triethylamine, 1-hydroxybenzotriazole (HOBT), dicyclohexylcarbodiimide (DCC) / tetrahydrofuran; CHCl3 / 1.) 0 deg C, 1 h, 2.) RT, 24 h
4: 73 percent / 1 N NaOH / methanol / 1.) 0 deg C, 30 min, 2.) RT, 20 h
5: 93 percent / triethylamine, 1-hydroxybenzotriazole (HOBT), dicyclohexylcarbodiimide (DCC) / tetrahydrofuran; CHCl3 / 1.) 0 deg C, 1 h, 2.) RT, 48 h
6: 60 percent / 1 N NaOH / methanol / 1.) 0 deg C, 1 h, 2.) RT, 72 h
With
sodium hydroxide; benzotriazol-1-ol; triethylamine; dicyclohexyl-carbodiimide;
In
tetrahydrofuran; methanol; chloroform;
DOI:10.1021/jm00142a002