Pictet-Spengler reaction in trifluoroacetic acid. Large scale synthesis of pyridoindolobenzodiazepine as an atypical antipsychotic agent
摘要:
Traditional syntheses of benzodiazepines involve a Bischler-Napieralski reaction which is a three step process and gives low overall yields. An attractive alternative is to construct the diazepine ring under Pictet-Spengler conditions. This paper reports the synthesis of a novel pyridoindolo-benzodiazepine as a potent atypical antipsychotic agent. The key step in the synthesis is the ring formation of the diazepine ring in neat trifluoroacetic acid.
Pictet-Spengler reaction in trifluoroacetic acid. Large scale synthesis of pyridoindolobenzodiazepine as an atypical antipsychotic agent
摘要:
Traditional syntheses of benzodiazepines involve a Bischler-Napieralski reaction which is a three step process and gives low overall yields. An attractive alternative is to construct the diazepine ring under Pictet-Spengler conditions. This paper reports the synthesis of a novel pyridoindolo-benzodiazepine as a potent atypical antipsychotic agent. The key step in the synthesis is the ring formation of the diazepine ring in neat trifluoroacetic acid.